diff --git a/src/entities/blobs/mia.c b/src/entities/blobs/mia.c
index ff4ac67..508b057 100644
--- a/src/entities/blobs/mia.c
+++ b/src/entities/blobs/mia.c
@@ -25,6 +25,8 @@ static void tick(void);
 static void touch(Entity *other);
 static void preTeleport(void);
 static void teleport(void);
+static void load(cJSON *root);
+static void save(cJSON *root);
 
 Entity *initMIA(void)
 {
@@ -53,6 +55,8 @@ Entity *initMIA(void)
 	m->reset = reset;
 	m->tick = tick;
 	m->touch = touch;
+	m->load = load;
+	m->save = save;
 
 	m->isMissionTarget = 1;
 	
@@ -144,3 +148,22 @@ static void teleport(void)
 		m->alive = ALIVE_DEAD;
 	}
 }
+
+static void load(cJSON *root)
+{
+	MIA *m;
+	
+	m = (MIA*)self;
+	
+	m->active = cJSON_GetObjectItem(root, "isMissionTarget")->valueint;
+}
+
+static void save(cJSON *root)
+{
+	MIA *m;
+	
+	m = (MIA*)self;
+	
+	cJSON_AddStringToObject(root, "type", "MIA");
+	cJSON_AddNumberToObject(root, "isMissionTarget", m->isMissionTarget);
+}
diff --git a/src/entities/blobs/mia.h b/src/entities/blobs/mia.h
index 1dfd640..3578db7 100644
--- a/src/entities/blobs/mia.h
+++ b/src/entities/blobs/mia.h
@@ -19,6 +19,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
 
 #include "../../common.h"
+#include "../../json/cJSON.h"
 
 extern Sprite *getSprite(char *name);
 extern void nothing(void);
diff --git a/src/entities/entities.c b/src/entities/entities.c
index 711ef1b..867c5f8 100644
--- a/src/entities/entities.c
+++ b/src/entities/entities.c
@@ -24,6 +24,10 @@ void animateEntity(void);
 static void applyDamage(int damage);
 static float bounce(float x);
 static SDL_Rect *getBounds(void);
+static void tick(void);
+static void touch(Entity *other);
+static void load(cJSON *root);
+static void save(cJSON *root);
 
 void initEntity(Entity *e)
 {
@@ -46,10 +50,15 @@ void initEntity(Entity *e)
 	e->thinkTime = 0;
 	
 	e->animate = animateEntity;
+	e->tick = tick;
+	e->touch = touch;
 	e->applyDamage = applyDamage;
 	e->bounce = bounce;
 	e->getBounds = getBounds;
 	
+	e->load = load;
+	e->save = save;
+	
 	world.entityTail->next = e;
 	world.entityTail = e;
 }
@@ -117,6 +126,26 @@ static void applyDamage(int damage)
 	
 }
 
+static void tick(void)
+{
+}
+
+static void touch(Entity *other)
+{
+}
+
+static void load(cJSON *root)
+{
+	SDL_LogMessage(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_ERROR, "Entity [name=%s, type=%d, x=%d, y=%d] cannot be loaded", self->name, self->type, (int)self->x, (int)self->y);
+	exit(1);
+}
+
+static void save(cJSON *root)
+{
+	SDL_LogMessage(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_ERROR, "Entity [name=%s, type=%d, x=%d, y=%d] cannot be saved'", self->name, self->type, (int)self->x, (int)self->y);
+	exit(1);
+}
+
 void dropCarriedItem(void)
 {
 	EntityExt *e;
diff --git a/src/entities/evilBlobs/pistolBlob.c b/src/entities/evilBlobs/pistolBlob.c
index 186b92b..8d7a7cd 100644
--- a/src/entities/evilBlobs/pistolBlob.c
+++ b/src/entities/evilBlobs/pistolBlob.c
@@ -21,6 +21,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include "pistolBlob.h"
 
 static int canFire(Entity *target);
+static void (*superSave)(cJSON *root);
+static void save(cJSON *root);
 
 Entity *initPistolBlob(void)
 {
@@ -37,8 +39,11 @@ Entity *initPistolBlob(void)
 	u->weaponType = WPN_AIMED_PISTOL;
 
 	u->maxShotsToFire = 3;
+	
+	superSave = u->save;
 
 	u->canFire = canFire;
+	u->save = save;
 	
 	return (Entity*)u;
 }
@@ -47,3 +52,10 @@ static int canFire(Entity *target)
 {
 	return 1;
 }
+
+static void save(cJSON *root)
+{
+	superSave(root);
+	
+	cJSON_AddStringToObject(root, "type", "PistolBlob");
+}
diff --git a/src/entities/evilBlobs/pistolBlob.h b/src/entities/evilBlobs/pistolBlob.h
index de1b0d2..aa4290f 100644
--- a/src/entities/evilBlobs/pistolBlob.h
+++ b/src/entities/evilBlobs/pistolBlob.h
@@ -19,6 +19,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
 
 #include "../../common.h"
+#include "../../json/cJSON.h"
 
 extern Unit *createUnit(void);
 extern void initEvilBlob(Unit *u);
diff --git a/src/entities/items/item.c b/src/entities/items/item.c
index db17e65..f02e28d 100644
--- a/src/entities/items/item.c
+++ b/src/entities/items/item.c
@@ -28,6 +28,8 @@ static void die(void);
 static void destructablePickupItem(Structure *s);
 static void enemyPickupItem(Unit *u);
 static void bobPickupItem(void);
+static void load(cJSON *root);
+static void save(cJSON *root);
 
 Entity *createItem(void)
 {
@@ -58,6 +60,8 @@ Entity *createItem(void)
 	i->changeEnvironment = changeEnvironment;
 	i->reset = reset;
 	i->die = die;
+	i->load = load;
+	i->save = save;
 	
 	return (Entity*)i;
 }
@@ -220,3 +224,37 @@ static void die(void)
 {
 	/* we will handle this ourselves! */
 }
+
+static void load(cJSON *root)
+{
+	Item *i;
+	
+	i = (Item*)self;
+	
+	i->canBeCarried = cJSON_GetObjectItem(root, "canBeCarried")->valueint;
+	i->canBePickedUp = cJSON_GetObjectItem(root, "canBePickedUp")->valueint;
+	i->isMissionTarget = cJSON_GetObjectItem(root, "isMissionTarget")->valueint;
+	STRNCPY(i->spriteName, cJSON_GetObjectItem(root, "spriteName")->valuestring, MAX_NAME_LENGTH);
+	i->startX = cJSON_GetObjectItem(root, "startX")->valueint;
+	i->startY = cJSON_GetObjectItem(root, "startY")->valueint;
+	if (cJSON_GetObjectItem(root, "collected"))
+	{
+		i->collected = cJSON_GetObjectItem(root, "collected")->valueint;
+	}
+}
+
+static void save(cJSON *root)
+{
+	Item *i;
+	
+	i = (Item*)self;
+	
+	cJSON_AddStringToObject(root, "type", "Item");
+	cJSON_AddNumberToObject(root, "canBeCarried", i->canBeCarried);
+	cJSON_AddNumberToObject(root, "canBePickedUp", i->canBePickedUp);
+	cJSON_AddNumberToObject(root, "isMissionTarget", i->isMissionTarget);
+	cJSON_AddStringToObject(root, "spriteName", i->spriteName);
+	cJSON_AddNumberToObject(root, "startX", i->startX);
+	cJSON_AddNumberToObject(root, "startY", i->startY);
+	cJSON_AddNumberToObject(root, "collected", i->collected);
+}
diff --git a/src/entities/items/item.h b/src/entities/items/item.h
index 26bb443..114d4d9 100644
--- a/src/entities/items/item.h
+++ b/src/entities/items/item.h
@@ -19,6 +19,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
 
 #include "../../common.h"
+#include "../../json/cJSON.h"
 
 extern void playSound(int snd, int ch);
 extern void setGameplayMessage(int type, char *format, ...);
diff --git a/src/entities/misc/infoPoint.c b/src/entities/misc/infoPoint.c
index 1757ca1..4e9bf83 100644
--- a/src/entities/misc/infoPoint.c
+++ b/src/entities/misc/infoPoint.c
@@ -22,6 +22,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 static void tick(void);
 static void touch(Entity *other);
+static void load(cJSON *root);
+static void save(cJSON *root);
 
 Entity *initInfoPoint(void)
 {
@@ -41,6 +43,8 @@ Entity *initInfoPoint(void)
 	
 	s->tick = tick;
 	s->touch = touch;
+	s->load = load;
+	s->save = save;
 	
 	return (Entity*)s;
 }
@@ -92,3 +96,27 @@ static void touch(Entity *other)
 		}
 	}
 }
+
+static void load(cJSON *root)
+{
+	Structure *s;
+	
+	s = (Structure*)self;
+	
+	STRNCPY(s->message, cJSON_GetObjectItem(root, "message")->valuestring, MAX_DESCRIPTION_LENGTH);
+	if (cJSON_GetObjectItem(root, "firstTouch"))
+	{
+		s->firstTouch = cJSON_GetObjectItem(root, "firstTouch")->valueint;
+	}
+}
+
+static void save(cJSON *root)
+{
+	Structure *s;
+	
+	s = (Structure*)self;
+	
+	cJSON_AddStringToObject(root, "type", "InfoPoint");
+	cJSON_AddStringToObject(root, "message", s->name);
+	cJSON_AddNumberToObject(root, "firstTouch", s->firstTouch);
+}
diff --git a/src/entities/misc/infoPoint.h b/src/entities/misc/infoPoint.h
index d7eda86..c7d77d1 100644
--- a/src/entities/misc/infoPoint.h
+++ b/src/entities/misc/infoPoint.h
@@ -19,6 +19,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
 
 #include "../../common.h"
+#include "../../json/cJSON.h"
 
 extern Sprite *getSprite(char *name);
 extern void showInfoMessage(char *message);
diff --git a/src/entities/structures/cardReader.c b/src/entities/structures/cardReader.c
index 3508db5..12dea36 100644
--- a/src/entities/structures/cardReader.c
+++ b/src/entities/structures/cardReader.c
@@ -22,6 +22,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 static void tick(void);
 static void touch(Entity *other);
+static void load(cJSON *root);
+static void save(cJSON *root);
 
 void initCardReader(Entity *e)
 {
@@ -50,6 +52,8 @@ void initCardReader(Entity *e)
 	
 	s->tick = tick;
 	s->touch = touch;
+	s->load = load;
+	s->save = save;
 }
 
 static void tick(void)
@@ -96,3 +100,26 @@ static void touch(Entity *other)
 		s->bobTouching = 2;
 	}
 }
+
+static void load(cJSON *root)
+{
+	Structure *s;
+	
+	s = (Structure*)self;
+	
+	s->active = cJSON_GetObjectItem(root, "active")->valueint;
+	STRNCPY(s->requiredItem, cJSON_GetObjectItem(root, "requiredCard")->valuestring, MAX_NAME_LENGTH);
+	STRNCPY(s->targetNames, cJSON_GetObjectItem(root, "targetNames")->valuestring, MAX_DESCRIPTION_LENGTH);
+}
+
+static void save(cJSON *root)
+{
+	Structure *s;
+	
+	s = (Structure*)self;
+	
+	cJSON_AddStringToObject(root, "type", "CardReader");
+	cJSON_AddNumberToObject(root, "active", s->active);
+	cJSON_AddStringToObject(root, "requiredCard", s->requiredItem);
+	cJSON_AddStringToObject(root, "targetNames", s->targetNames);
+}
diff --git a/src/entities/structures/cardReader.h b/src/entities/structures/cardReader.h
index 3b40a8e..0d25c2a 100644
--- a/src/entities/structures/cardReader.h
+++ b/src/entities/structures/cardReader.h
@@ -19,6 +19,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
 
 #include "../../common.h"
+#include "../../json/cJSON.h"
 
 extern void initEntity(Entity *e);
 extern Sprite *getSprite(char *name);
diff --git a/src/entities/structures/door.c b/src/entities/structures/door.c
index 3461540..ecfe66d 100644
--- a/src/entities/structures/door.c
+++ b/src/entities/structures/door.c
@@ -26,6 +26,8 @@ static void openWithKey(void);
 static int isClosed(void);
 static int isOpening(void);
 static int isClosing(void);
+static void load(cJSON *root);
+static void save(cJSON *root);
 
 Entity *initDoor(void)
 {
@@ -57,6 +59,8 @@ Entity *initDoor(void)
 	
 	s->tick = tick;
 	s->touch = touch;
+	s->load = load;
+	s->save = save;
 	
 	return (Entity*)s;
 }
@@ -252,3 +256,40 @@ static int isClosed(void)
 	
 	return (s->state == DOOR_CLOSED && ((int) s->x == s->closedX && (int) s->y == s->closedY));
 }
+
+static void load(cJSON *root)
+{
+	Structure *s;
+	
+	s = (Structure*)self;
+	
+	s->active = cJSON_GetObjectItem(root, "isLocked")->valueint;
+	if (cJSON_GetObjectItem(root, "requiredKey"))
+	{
+		STRNCPY(s->requiredItem, cJSON_GetObjectItem(root, "requiredKey")->valuestring, MAX_NAME_LENGTH);
+	}
+	s->tx = cJSON_GetObjectItem(root, "tx")->valueint;
+	s->ty = cJSON_GetObjectItem(root, "ty")->valueint;
+	s->speed = cJSON_GetObjectItem(root, "speed")->valueint;
+	s->state = cJSON_GetObjectItem(root, "state")->valueint;
+}
+
+static void save(cJSON *root)
+{
+	Structure *s;
+	
+	s = (Structure*)self;
+	
+	cJSON_AddStringToObject(root, "type", "Door");
+	cJSON_AddNumberToObject(root, "isLocked", s->isLocked);
+	cJSON_AddNumberToObject(root, "tx", s->tx);
+	cJSON_AddNumberToObject(root, "ty", s->ty);
+	cJSON_AddNumberToObject(root, "speed", s->speed);
+	cJSON_AddNumberToObject(root, "state", s->state);
+	cJSON_AddStringToObject(root, "requiredKey", s->requiredItem);
+	
+	if (strcmp(s->sprite[0]->name, "Door") != 0)
+	{
+		cJSON_AddStringToObject(root, "type", s->sprite[0]->name);
+	}
+}
diff --git a/src/entities/structures/door.h b/src/entities/structures/door.h
index f6644b4..2f1d791 100644
--- a/src/entities/structures/door.h
+++ b/src/entities/structures/door.h
@@ -19,6 +19,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
 
 #include "../../common.h"
+#include "../../json/cJSON.h"
 
 extern Sprite *getSprite(char *name);
 extern void playSound(int snd, int ch);
diff --git a/src/entities/structures/horizontalDoor.c b/src/entities/structures/horizontalDoor.c
index 5aa0b5f..796182e 100644
--- a/src/entities/structures/horizontalDoor.c
+++ b/src/entities/structures/horizontalDoor.c
@@ -24,7 +24,7 @@ Entity *initHorizontalDoor(void)
 {
 	Structure *s;
 	
-	s = createStructure();
+	s = (Structure*)initDoor();
 	
 	s->type = ET_DOOR;
 	
diff --git a/src/entities/structures/horizontalDoor.h b/src/entities/structures/horizontalDoor.h
index 6a17410..c7f62e6 100644
--- a/src/entities/structures/horizontalDoor.h
+++ b/src/entities/structures/horizontalDoor.h
@@ -22,3 +22,4 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 extern Sprite *getSprite(char *name);
 extern Structure *createStructure(void);
+extern Entity *initDoor(void);
diff --git a/src/entities/structures/lift.c b/src/entities/structures/lift.c
index ec93899..bd34200 100644
--- a/src/entities/structures/lift.c
+++ b/src/entities/structures/lift.c
@@ -22,6 +22,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 static void action(void);
 static void activate(int active);
+static void load(cJSON *root);
+static void save(cJSON *root);
 
 Entity *initLift(Entity *e)
 {
@@ -47,6 +49,8 @@ Entity *initLift(Entity *e)
 	
 	s->action = action;
 	s->activate = activate;
+	s->load = load;
+	s->save = save;
 	
 	return (Entity*)s;
 }
@@ -110,3 +114,36 @@ static void activate(int active)
 		}
 	}
 }
+
+static void load(cJSON *root)
+{
+	Structure *s;
+	
+	s = (Structure*)self;
+	
+	s->active = cJSON_GetObjectItem(root, "active")->valueint;
+	s->tx = cJSON_GetObjectItem(root, "tx")->valueint;
+	s->ty = cJSON_GetObjectItem(root, "ty")->valueint;
+	s->speed = cJSON_GetObjectItem(root, "speed")->valueint;
+	s->state = cJSON_GetObjectItem(root, "state")->valueint;
+	s->startX = cJSON_GetObjectItem(root, "startX")->valueint;
+	s->startY = cJSON_GetObjectItem(root, "startY")->valueint;
+	s->waitTime = cJSON_GetObjectItem(root, "waitTime")->valueint;
+}
+
+static void save(cJSON *root)
+{
+	Structure *s;
+	
+	s = (Structure*)self;
+	
+	cJSON_AddStringToObject(root, "type", "Lift");
+	cJSON_AddNumberToObject(root, "active", s->active);
+	cJSON_AddNumberToObject(root, "tx", s->tx);
+	cJSON_AddNumberToObject(root, "ty", s->ty);
+	cJSON_AddNumberToObject(root, "speed", s->speed);
+	cJSON_AddNumberToObject(root, "state", s->state);
+	cJSON_AddNumberToObject(root, "startX", s->startX);
+	cJSON_AddNumberToObject(root, "startY", s->startY);
+	cJSON_AddNumberToObject(root, "waitTime", s->waitTime);
+}
diff --git a/src/entities/structures/lift.h b/src/entities/structures/lift.h
index d2908d9..9fab32b 100644
--- a/src/entities/structures/lift.h
+++ b/src/entities/structures/lift.h
@@ -19,6 +19,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
 
 #include "../../common.h"
+#include "../../json/cJSON.h"
 
 extern Sprite *getSprite(char *name);
 extern void getSlope(int x1, int y1, int x2, int y2, float *dx, float *dy);
diff --git a/src/entities/structures/powerPoint.c b/src/entities/structures/powerPoint.c
index 0435238..bc13807 100644
--- a/src/entities/structures/powerPoint.c
+++ b/src/entities/structures/powerPoint.c
@@ -23,6 +23,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 static void tick(void);
 static void action(void);
 static void touch(Entity *other);
+static void load(cJSON *root);
+static void save(cJSON *root);
 
 Entity *initPowerPoint(void)
 {
@@ -43,6 +45,8 @@ Entity *initPowerPoint(void)
 	s->tick = tick;
 	s->action = action;
 	s->touch = touch;
+	s->load = load;
+	s->save = save;
 	
 	return (Entity*)s;
 }
@@ -113,3 +117,24 @@ static void touch(Entity *other)
 		}
 	}
 }
+
+static void load(cJSON *root)
+{
+	Structure *s;
+	
+	s = (Structure*)self;
+	
+	s->requiredPower = cJSON_GetObjectItem(root, "requiredPower")->valueint;
+	STRNCPY(s->targetNames, cJSON_GetObjectItem(root, "targetNames")->valuestring, MAX_NAME_LENGTH);
+}
+
+static void save(cJSON *root)
+{
+	Structure *s;
+	
+	s = (Structure*)self;
+	
+	cJSON_AddStringToObject(root, "type", "PowerPoint");
+	cJSON_AddNumberToObject(root, "requiredPower", s->requiredPower);
+	cJSON_AddStringToObject(root, "targetNames", s->targetNames);
+}
diff --git a/src/entities/structures/powerPoint.h b/src/entities/structures/powerPoint.h
index d67ce52..08098f1 100644
--- a/src/entities/structures/powerPoint.h
+++ b/src/entities/structures/powerPoint.h
@@ -19,6 +19,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
 
 #include "../../common.h"
+#include "../../json/cJSON.h"
 
 extern Sprite *getSprite(char *name);
 extern void activateEntities(char *names, int activate);
diff --git a/src/entities/structures/powerPool.c b/src/entities/structures/powerPool.c
index 071fcee..a93fc60 100644
--- a/src/entities/structures/powerPool.c
+++ b/src/entities/structures/powerPool.c
@@ -23,6 +23,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 static void tick(void);
 static void action(void);
 static void touch(Entity *other);
+static void load(cJSON *root);
+static void save(cJSON *root);
 
 Entity *initPowerPool(void)
 {
@@ -43,6 +45,8 @@ Entity *initPowerPool(void)
 	s->tick = tick;
 	s->action = action;
 	s->touch = touch;
+	s->load = load;
+	s->save = save;
 	
 	return (Entity*)s;
 }
@@ -100,3 +104,13 @@ static void touch(Entity *other)
 		}
 	}
 }
+
+static void load(cJSON *root)
+{
+	/* nothing to do */
+}
+
+static void save(cJSON *root)
+{
+	cJSON_AddStringToObject(root, "type", "PowerPool");
+}
diff --git a/src/entities/structures/powerPool.h b/src/entities/structures/powerPool.h
index 80b9c24..2765461 100644
--- a/src/entities/structures/powerPool.h
+++ b/src/entities/structures/powerPool.h
@@ -19,6 +19,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
 
 #include "../../common.h"
+#include "../../json/cJSON.h"
 
 extern Structure *createStructure(void);
 extern Sprite *getSprite(char *name);
diff --git a/src/entities/structures/pressurePlate.c b/src/entities/structures/pressurePlate.c
index 69c8a56..7579d38 100644
--- a/src/entities/structures/pressurePlate.c
+++ b/src/entities/structures/pressurePlate.c
@@ -22,6 +22,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 static void tick(void);
 static void touch(Entity *other);
+static void load(cJSON *root);
+static void save(cJSON *root);
 
 Entity *initPressurePlate(void)
 {
@@ -41,6 +43,8 @@ Entity *initPressurePlate(void)
 	
 	s->tick = tick;
 	s->touch = touch;
+	s->load = load;
+	s->save = save;
 	
 	return (Entity*)s;
 }
@@ -85,3 +89,29 @@ static void touch(Entity *other)
 		s->weightApplied = 5;
 	}
 }
+
+static void load(cJSON *root)
+{
+	Structure *s;
+	
+	s = (Structure*)self;
+	
+	if (cJSON_GetObjectItem(root, "active"))
+	{
+		s->active = cJSON_GetObjectItem(root, "active")->valueint;
+	}
+	s->isWeighted = cJSON_GetObjectItem(root, "isWeighted")->valueint;
+	STRNCPY(s->targetNames, cJSON_GetObjectItem(root, "targetNames")->valuestring, MAX_DESCRIPTION_LENGTH);
+}
+
+static void save(cJSON *root)
+{
+	Structure *s;
+	
+	s = (Structure*)self;
+	
+	cJSON_AddStringToObject(root, "type", "PressurePlate");
+	cJSON_AddNumberToObject(root, "active", s->active);
+	cJSON_AddNumberToObject(root, "isWeighted", s->isWeighted);
+	cJSON_AddStringToObject(root, "targetNames", s->targetNames);
+}
diff --git a/src/entities/structures/pressurePlate.h b/src/entities/structures/pressurePlate.h
index 2a701bd..0b1e5e3 100644
--- a/src/entities/structures/pressurePlate.h
+++ b/src/entities/structures/pressurePlate.h
@@ -19,6 +19,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
 
 #include "../../common.h"
+#include "../../json/cJSON.h"
 
 extern Structure *createStructure(void);
 extern Sprite *getSprite(char *name);
diff --git a/src/entities/structures/pushBlock.c b/src/entities/structures/pushBlock.c
index 3f79b80..f982e39 100644
--- a/src/entities/structures/pushBlock.c
+++ b/src/entities/structures/pushBlock.c
@@ -21,6 +21,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include "pushBlock.h"
 
 static void activate(int active);
+static void load(cJSON *root);
+static void save(cJSON *root);
 
 Entity *initPushBlock(void)
 {
@@ -37,6 +39,8 @@ Entity *initPushBlock(void)
 	s->flags |= EF_EXPLODES | EF_ALWAYS_PROCESS;
 	
 	s->activate = activate;
+	s->load = load;
+	s->save = save;
 	
 	return (Entity*)s;
 }
@@ -57,3 +61,26 @@ static void activate(int active)
 		playSound(SND_APPEAR, CH_ANY);
 	}
 }
+
+static void load(cJSON *root)
+{
+	Structure *s;
+	
+	s = (Structure*)self;
+	
+	STRNCPY(s->spriteName, cJSON_GetObjectItem(root, "spriteName")->valuestring, MAX_NAME_LENGTH);
+	s->startX = cJSON_GetObjectItem(root, "startX")->valueint;
+	s->startY = cJSON_GetObjectItem(root, "startY")->valueint;
+}
+
+static void save(cJSON *root)
+{
+	Structure *s;
+	
+	s = (Structure*)self;
+	
+	cJSON_AddStringToObject(root, "type", "PressurePlate");
+	cJSON_AddStringToObject(root, "spriteName", s->spriteName);
+	cJSON_AddNumberToObject(root, "startX", s->startX);
+	cJSON_AddNumberToObject(root, "startY", s->startY);
+}
diff --git a/src/entities/structures/pushBlock.h b/src/entities/structures/pushBlock.h
index 9c1bfbc..3664f5b 100644
--- a/src/entities/structures/pushBlock.h
+++ b/src/entities/structures/pushBlock.h
@@ -19,6 +19,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
 
 #include "../../common.h"
+#include "../../json/cJSON.h"
 
 extern void playSound(int snd, int ch);
 extern void addTeleportStars(Entity *e);
diff --git a/src/entities/structures/teleporter.c b/src/entities/structures/teleporter.c
index 5c1296c..30f4a5d 100644
--- a/src/entities/structures/teleporter.c
+++ b/src/entities/structures/teleporter.c
@@ -23,6 +23,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 static void action(void);
 static void touch(Entity *other);
 static void activate(int active);
+static void load(cJSON *root);
+static void save(cJSON *root);
 
 Entity *initTeleporter(void)
 {
@@ -43,6 +45,8 @@ Entity *initTeleporter(void)
 	s->action = action;
 	s->touch = touch;
 	s->activate = activate;
+	s->load = load;
+	s->save = save;
 	
 	return (Entity*)s;
 }
@@ -93,3 +97,13 @@ static void activate(int active)
 		}
 	}
 }
+
+static void load(cJSON *root)
+{
+	/* nothing to do */
+}
+
+static void save(cJSON *root)
+{
+	cJSON_AddStringToObject(root, "type", "Teleporter");
+}
diff --git a/src/entities/structures/teleporter.h b/src/entities/structures/teleporter.h
index c77eacd..68ee13a 100644
--- a/src/entities/structures/teleporter.h
+++ b/src/entities/structures/teleporter.h
@@ -19,6 +19,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
 
 #include "../../common.h"
+#include "../../json/cJSON.h"
 
 extern void playSound(int snd, int ch);
 extern void addTeleporterEffect(float x, float y);
diff --git a/src/entities/unit.c b/src/entities/unit.c
index 5553cbe..cf2b706 100644
--- a/src/entities/unit.c
+++ b/src/entities/unit.c
@@ -24,6 +24,8 @@ void unitTick(void);
 static void attack(void);
 static int canFire(Entity *target);
 static void preFire(void);
+static void load(cJSON *root);
+static void save(cJSON *root);
 
 Unit *createUnit(void)
 {
@@ -55,6 +57,8 @@ Unit *createUnit(void)
 	u->preFire = preFire;
 	u->attack = attack;
 	u->canFire = canFire;
+	u->load = load;
+	u->save = save;
 	
 	return u;
 }
@@ -219,3 +223,32 @@ static int canFire(Entity *target)
 {
 	return 0;
 }
+
+static void load(cJSON *root)
+{
+	Unit *u;
+	
+	u = (Unit*)self;
+	
+	u->canCarryItem = cJSON_GetObjectItem(root, "canCarryItem")->valueint;
+	u->startX = cJSON_GetObjectItem(root, "startX")->valueint;
+	u->startY = cJSON_GetObjectItem(root, "startY")->valueint;
+	u->isMissionTarget = cJSON_GetObjectItem(root, "isMissionTarget")->valueint;
+	u->health = cJSON_GetObjectItem(root, "health")->valueint;
+	u->healthMax = cJSON_GetObjectItem(root, "healthMax")->valueint;
+}
+
+static void save(cJSON *root)
+{
+	Unit *u;
+	
+	u = (Unit*)self;
+	
+	cJSON_AddStringToObject(root, "type", "Unit");
+	cJSON_AddNumberToObject(root, "canCarryItem", u->canCarryItem);
+	cJSON_AddNumberToObject(root, "startX", u->startX);
+	cJSON_AddNumberToObject(root, "startY", u->startY);
+	cJSON_AddNumberToObject(root, "isMissionTarget", u->isMissionTarget);
+	cJSON_AddNumberToObject(root, "health", u->health);
+	cJSON_AddNumberToObject(root, "healthMax", u->healthMax);
+}
diff --git a/src/entities/unit.h b/src/entities/unit.h
index 38d5586..7779c6b 100644
--- a/src/entities/unit.h
+++ b/src/entities/unit.h
@@ -19,6 +19,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
 
 #include "../common.h"
+#include "../json/cJSON.h"
 
 extern void initEntity(Entity *e);
 extern void lookForPlayer(void);
diff --git a/src/structs.h b/src/structs.h
index 595542b..a153b8f 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -32,6 +32,7 @@ typedef struct Widget Widget;
 typedef struct Atlas Atlas;
 typedef struct Bucket Bucket;
 typedef struct EntityDef EntityDef;
+typedef struct cJSON cJSON;
 
 typedef struct Entity Entity;
 typedef struct EntityExt EntityExt;
@@ -144,7 +145,8 @@ struct Entity {
 	void (*applyDamage)(int amount);
 	void (*changeEnvironment)(void);
 	Sprite *(*getCurrentSprite)(void);
-	int (*preSave)(void);
+	void (*load)(cJSON *root);
+	void (*save)(cJSON *root);
 	SDL_Rect *(*getBounds)(void);
 	Entity *next;
 };
diff --git a/src/world/worldLoader.c b/src/world/worldLoader.c
index d1f7078..1f76a25 100644
--- a/src/world/worldLoader.c
+++ b/src/world/worldLoader.c
@@ -142,7 +142,17 @@ static void loadEntities(cJSON *root)
 	
 	for (node = root->child ; node != NULL ; node = node->next)
 	{
-		createEntity(cJSON_GetObjectItem(node, "type")->valuestring);
+		self = createEntity(cJSON_GetObjectItem(node, "type")->valuestring);
+		
+		if (cJSON_GetObjectItem(node, "name"))
+		{
+			STRNCPY(self->name, cJSON_GetObjectItem(node, "name")->valuestring, MAX_NAME_LENGTH);
+		}
+		
+		self->x = cJSON_GetObjectItem(node, "x")->valueint;
+		self->y = cJSON_GetObjectItem(node, "y")->valueint;
+		
+		self->load(node);
 	}
 }
 
diff --git a/src/world/worldLoader.h b/src/world/worldLoader.h
index 53392ff..424b987 100644
--- a/src/world/worldLoader.h
+++ b/src/world/worldLoader.h
@@ -27,4 +27,5 @@ extern Entity *createEntity(char *typeStr);
 extern long lookup(const char *name);
 extern void initBob(Bob *b);
 
+extern Entity *self;
 extern World world;