Before mod support, the decomp project allows for the game to be ported to more systems. Tbh, I’m not completely sure what all the differences are, but the two things that matter the most are the possibility to port to other systems, and the mods that can now take advantage of the decompiled code, allowing for mod support that wouldn’t be possible on the steam version.
Yes, but you’ll have to build the decomp version yourself. It’ll be kept separate from the steam version you already have installed. Fair warning as it looks a bit complicated. Here’s a guide: https://gamebanana.com/tuts/15254
I don’t have any mods that focus on improving the base game itself, so I’ll give the ones I have downloaded and find enjoyable.
CHARACTER MODS
Blazey Mix Plus New Animations - Blaze with a custom moveset (replaces Sonic)
Amy and Cream Edition (replacing Sonic and Tails)
Amy Mania SHC 2020 Amy with a custom moveset (replacing Mighty)
SOUNDTRACK MODS
Advance Series BGM
Sonic Rush/Adventure Music
XGamer Dream Soundtrack
OTHER MODS
Sonic Mania Heroes (play as 3 characters as once - only works in Mania mode)
Splitscreen Coop (works with up to 4 people)
I’d rather not replace any characters. Like I mentioned I tried installing the Amy extra slot character mod but idk what it’s not working.
Have you looked at the github page for the mod? This was listed as a known bug:
“LOADING A SAVEDATA.BIN WITH AN AMY SLOT OUTSIDE OF EXTRA SLOT AMY WILL CRASH THE GAME UPON ENTERING MANIA MODE. BACKUP YOUR ORIGINAL SAVEDATA.BIN!!!”
Edit: Looks like this mod was made for use with the Sonic Mania Decomp, not the version of Mania you use on Steam.
https://github.com/Rubberduckycooly/Sonic-Mania-Decompilation
What’s the difference between that and steam?
Before mod support, the decomp project allows for the game to be ported to more systems. Tbh, I’m not completely sure what all the differences are, but the two things that matter the most are the possibility to port to other systems, and the mods that can now take advantage of the decompiled code, allowing for mod support that wouldn’t be possible on the steam version.
Can my steam version turn into this decomop thing?
Yes, but you’ll have to build the decomp version yourself. It’ll be kept separate from the steam version you already have installed. Fair warning as it looks a bit complicated. Here’s a guide: https://gamebanana.com/tuts/15254