Hey! Thank you very much for playing! You know what! I’m a idiot! I totally forgot to implement an explicit fullscreen function! On my computer, I run a tiling window system and the game will always try to take all available space, so it tends to automatically full screen for me. I forget about that. I’m very sorry you were not able to go to full screen :( Still, I’m glad you were able to enjoy the game regardless, and it’s awesome that Asteroids is new for you! I hope it didn’t disappoint!