Hi! Optimization... I don't know what's going on :P Every texture has very low resolution, models have lowest polygons count, sounds and musics are compressed. All of textures and sounds were compressed to have lower size and to be less stressing to PC. And there is also Occlusion Culling so only one room is rendering at time (others are unvisible). I did everything what I Can. I saw one person on Youtube who was having 15 FPS so I know that something is still wrong.
Currently I'm not working anymore on Mandela Invasion, because I want to make something new and better.
I will make more games so please, follow me and you will know about everything what's going to be released :)