diff --git a/ability.h b/ability.h
index d3c92b0..c45f7dc 100644
--- a/ability.h
+++ b/ability.h
@@ -18,7 +18,8 @@ namespace battleship{
 			LOAD_SPEED,
 			DRAW_RATE,
 			DRAW_SPEED,
-			HACK_RANGE
+			HACK_RANGE,
+			UNIT_UNLOCK
 		};
 
 		Type type;
diff --git a/game.cpp b/game.cpp
index fe17b11..5fd9e7a 100644
--- a/game.cpp
+++ b/game.cpp
@@ -265,7 +265,7 @@ namespace battleship{
 
 			Ability ability;
 			ability.type = techTable["type"];
-			ability.ammount = techTable["ammount"].get_or(0);
+			ability.ammount = techTable["ammount"].get_or(0.0);
 			ability.gameObjType = techTable["gameObjType"];
 			ability.gameObjIds = parseTechTable(i, techKey, "numGameObjIds", "gameObjIds");
 			abilities.push_back(ability);
@@ -287,4 +287,17 @@ namespace battleship{
 
 		return ammount;
 	}
+
+	bool Game::isUnitUnlocked(vector<int> techResearch, int unitId){
+		for(int techId : techResearch){
+			for(int abilId : technologies[techId].abilities){
+				vector<int> ids = abilities[abilId].gameObjIds;
+
+				if(find(ids.begin(), ids.end(), unitId) != ids.end())
+					return true;
+			}
+		}
+
+		return false;
+	}
 }
diff --git a/game.h b/game.h
index af76b46..ae42ab8 100644
--- a/game.h
+++ b/game.h
@@ -27,12 +27,14 @@ namespace battleship{
 			void changeUnitPlayer(Unit*, Player*);
 			void initTechnologies();
 			float calcAbilFromTech(Ability::Type, std::vector<int>, int, int);
+			bool isUnitUnlocked(std::vector<int>, int);
 			inline void addFx(Fx f){fx.push_back(f);}
 			inline void addPlayer(Player *pl){players.push_back(pl);}
 			inline std::vector<Player*>& getPlayers(){return players;}
 			inline Player* getPlayer(int id){return players[id];}
 			inline int getNumPlayers(){return players.size();}
 			inline Technology getTechnology(int id){return technologies[id];}
+			inline Ability getAbility(int id){return abilities[id];}
 		private:
 			Game(){}
 			void resetLuaGameObjects();
diff --git a/player.cpp b/player.cpp
index 2195442..cec2871 100755
--- a/player.cpp
+++ b/player.cpp
@@ -183,4 +183,8 @@ namespace battleship{
 
 		return ucUnits;
 	}
+
+	void Player::addTechnology(int techId){
+		technologies.push_back(techId);
+	}
 }
diff --git a/player.h b/player.h
index a6a8a2e..e14e2c7 100755
--- a/player.h
+++ b/player.h
@@ -26,6 +26,7 @@ namespace battleship{
 		void selectUnits(std::vector<Unit*>);
 		std::vector<Unit*> getUnitsById(int, int = -1);
 		std::vector<Unit*> getUnitsByClass(UnitClass, int = -1);
+		void addTechnology(int);
 		inline void deselectUnits(){selectedUnits.clear();}
 		inline Unit* getSelectedUnit(int id){return selectedUnits[id];}
 		inline std::vector<Unit*> getSelectedUnits(){return selectedUnits;}
@@ -74,7 +75,6 @@ namespace battleship{
 		inline vb01::Vector3 getColor(){return color;}
 		inline std::string getName(){return name;}
 		inline std::vector<int> getTechnologies(){return technologies;}
-		inline void addTechnology(int tid){technologies.push_back(tid);}
     private:
 		bool cpuPlayer = false;
 		std::vector<int> technologies;
diff --git a/unit.cpp b/unit.cpp
index 27b67f0..833d6a2 100755
--- a/unit.cpp
+++ b/unit.cpp
@@ -184,7 +184,7 @@ namespace battleship{
 
 			for(int i = 0; i < numBuildableUnits; i++){
 				sol::table buTable = unitTable[tblName][i + 1];
-				buildableUnits.push_back(BuildableUnit(buTable["id"], buTable["buildable"]));
+				buildableUnits.push_back(BuildableUnit(buTable["id"], game->isUnitUnlocked(currTechs, id) | (bool)buTable["buildable"]));
 			}
 		}
 	}