SteamDeck ships with Proton and ntt-development Steam beta branch seems to run fine in it (except you’ll have to tap on the Settings menu to enable gamepad).
hey do you think you could help me im not sure on how to add ntt to nuclear throne and it all says online use wine but I can't get that working either.
The game will load mods from a “mods” sub-directory either in game directory or in the save file directory (where NuclearThrone.sav is). Finding that directory in WINE and placing the mods there would be the easiest.