My first 3D game! About the Game Art by Khud0 Important information Press ‘N’ for night mode. Press ‘Del’ then ‘Esc’ to reset all achievements. 100 hidden aliens is a hidden object game in the cosmic setting. Black and white hand-drawn graphics in a cartoon style. Aliens come in very different shapes. They are like everything. And they are not like everything. Try to find them all. Don’t be afraid of alien music. This is a cute game for all ages.