diff --git a/CMakeLists.txt b/CMakeLists.txt
index 25b436f..2c9c152 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,7 +7,7 @@ project(breakhack C)
 set(breakhack_GAME_TITLE "BreakHack")
 set(breakhack_MAJOR_VERSION 0)
 set(breakhack_MINOR_VERSION 1)
-set(breakhack_PATCH_VERSION 12)
+set(breakhack_PATCH_VERSION 13)
 set(breakhack_RELEASE_TYPE "(early access)")
 
 include(FindLua)
diff --git a/assets/Extras/icon.png b/assets/Extras/icon.png
new file mode 100644
index 0000000..e82c43b
Binary files /dev/null and b/assets/Extras/icon.png differ
diff --git a/build/releasenotes/early-access-v13.txt b/build/releasenotes/early-access-v13.txt
new file mode 100644
index 0000000..2ed97f3
--- /dev/null
+++ b/build/releasenotes/early-access-v13.txt
@@ -0,0 +1,8 @@
+9a610d5 Adds window icon
+6af8d9d Completes #8 First boss
+915ea59 Fixes a mistake in music loading.
+6cc96a9 Begins #8 First boss
+1a09328 Adds boss music and an additional attribution line per request.
+6633db7 Adds room objects and FIRE rooms.
+0b58e53 Removed "Examples" folder from assets
+292f549 Minor compiler warning fix
diff --git a/src/artifact.c b/src/artifact.c
index b04f24d..d4f6e2e 100644
--- a/src/artifact.c
+++ b/src/artifact.c
@@ -96,7 +96,7 @@ artifact_create_random(Player *p, Uint8 level)
 {
 	int option = -1;
 	if (p->stats.lvl >= 4)
-		option = get_random(LAST_ARTIFACT_EFFECT);
+		option = get_random(LAST_ARTIFACT_EFFECT - 1);
 	else if (p->stats.lvl >= 3)
 		option = get_random(INCREASED_STUN);
 	else
diff --git a/src/main.c b/src/main.c
index 5b6839f..b81f781 100644
--- a/src/main.c
+++ b/src/main.c
@@ -51,6 +51,7 @@
 #include "input.h"
 #include "screen.h"
 #include "hiscore.h"
+#include "io_util.h"
 
 typedef enum Turn_t {
 	PLAYER,
@@ -143,6 +144,9 @@ bool initSDL(void)
 		return false;
 	}
 
+	// Set the window icon
+	SDL_SetWindowIcon(gWindow, IMG_Load_RW(io_load_rwops("Extras/icon.png"), true));
+
 	gRenderer = SDL_CreateRenderer(gWindow, -1,
 				       SDL_RENDERER_ACCELERATED | SDL_RENDERER_TARGETTEXTURE);
 	if (gRenderer == NULL)
diff --git a/src/monster.c b/src/monster.c
index a46bd2a..6d27f87 100644
--- a/src/monster.c
+++ b/src/monster.c
@@ -542,7 +542,7 @@ monster_drop_loot(Monster *monster, Map *map, Player *player)
 		linkedlist_append(&map->items, treasure);
 	}
 
-	if (get_random(19) == 0) {
+	if (monster->stats.lvl > 2 && get_random(19) == 0) {
 		Artifact *a = artifact_create_random(player, 1);
 		a->sprite->pos = monster->sprite->pos;
 		linkedlist_append(&map->artifacts, a);
diff --git a/src/player.c b/src/player.c
index f4ee913..8af18d4 100644
--- a/src/player.c
+++ b/src/player.c
@@ -576,7 +576,7 @@ void player_update(UpdateData *data)
 		return;
 
 	check_skill_activation(data);
-	if (!check_skill_trigger(data))
+	if (player->state != FALLING && !check_skill_trigger(data))
 		handle_next_move(data);
 
 	if (player->state == FALLING && player->stats.hp > 0) {
diff --git a/src/skill.c b/src/skill.c
index e82b5d1..c303ea1 100644
--- a/src/skill.c
+++ b/src/skill.c
@@ -434,7 +434,7 @@ skill_create(enum SkillType t)
 			return NULL;
 	}
 
-#ifdef DEBUG
+#ifdef DEBUG_SKILLS
 	skill->levelcap = 1;
 #endif
 	return skill;