CheatDeck vs Game Cheats Manager

CheatDeck is a free, GPL-3.0 Decky Loader plugin for Steam Deck that launches sidecar programs and manages game launch options. It can start a selected .exe or .bat alongside a game in the same Proton or Wine environment, then stop it when the game exits. Its Language setting assigns one locale code to both LANG and HOST_LC_ALL. Advanced controls cover desktop behavior, FSYNC, WineD3D, compatibility-data redirection, and audio latency. Custom Options accept environment assignments, prefix commands, and arguments before or after %command%. Unsupported shell syntax or unclear launch options make a document read-only to prevent unsafe partial edits. Optional Lossless Scaling and OptiScaler presets require their corresponding Decky plugins. Installation uses Decky Loader Developer Mode and CheatDeck.zip from a release or nightly build. Some sidecars need runtime dependencies installed with protontricks.

Game Cheats Manager has no write-up on Specifiction yet; its figures are above.