All Walls Must Fall is a turn-based tactics video game developed by Inbetweengames, who published it in 2018 for Windows, macOS, and Linux.

In 2089, time-traveling agents attempt to stop a nuclear attack in a version of Berlin where the Cold War never ended.

[5] Inbetweengames was inspired to make a turn-based tactics game using an isometric point of view by X-COM: UFO Defense, Syndicate, and Fallout.

Time-travel was initially implemented so players could undo actions, and it was expanded into a core mechanic as development continued.

[3] In recommending the game, Eurogamer wrote, "Witty and wonderfully scrappy, turn-based combat has never looked quite like this before.

"[4] Though they praised the atmosphere and theme, PC Gamer called it "a terrific elevator pitch with a wonky execution".