So don't be surprised if you see the older sdk, as this project is based from the old sdk.) That's because this project was initially started with the Open Steamworks from 2016. New interfaces from the sdk v146 are supprted (Not all interfaces are implemented though.'ColdStorage/%your-username%/%AppId%/LocalSaves')

(Game progress files save, the default directory is where you have the built dll, so steam_api(64).dll, Callbacks (The callbacks might be the more harder part to code in a Steam emu for someone who have small knowlegde, however I explain the callback code line by line, so hope you can understand it.).Auto configuration (if you don't want to use the INI file for configuration at all, you need at least the steam_appid.txt file to provide to the emulator, the game AppId).Steam stub bypass (only for the newest variants).DLC unlocking (Feature to unlock all DLCs and DLC listing too, which the format is the same as other emus).This emulator is written in C++ and some parts of the code in Assembly. ColdAPI is a mini Steam offline emulator for Windows that allows you to play Steam games in SinglePlayer.

Steam offline installer