CheatDeck vs CoSMOS

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.

CoSMOS is a free self-service gamehacking tool for people who want to modify their own games while waiting for trainers. It is offered in Steam Deck, PC Beginner, and PC Advanced versions, with options for beginners and experienced gamehackers. The Steam Deck edition is a native application for Linux and Steam Deck, with a simplified memory scanner and built-in disassembler. PC Beginner is integrated with Cheat Happens Aurora. PC Advanced includes a memory scanner, VEH debugger, script engine, disassembler, dump viewer, speedhack, .NET assembly explorer, reference search, process viewers, and script editor; its listed version is 6.1.5. CoSMOS uses hardware-accelerated scans and can read and import 99% of CheatEngine tables. The free tool requires no registration, has no locked features, and includes no adware or hidden software. Cheat Happens provides technical support through its message board. The maker advises using cheats and trainers offline only and says it does not make cheats for online or multiplayer games.