Duo Survival

*Duo Survival* is a side-scrolling cooperative puzzle browser game. Control two survivors, a man and a woman. You can switch between both characters in single-player mode to solve mechanisms and avoid traps. Escape through overgrown abandoned city ruins. Each character has unique abilities: the man can break obstacles, while the woman can squeeze through narrow spaces. Progress through challenging levels requiring teamwork and logic, playable directly in browser with no download.

These games get the keyboard directly — the controls are whatever the game itself defines, usually in its own help or options screen.