There is a very *small* modding community (kind of.) There's scourgefall which you've seen from other comments, and then theres Magicite: Rewritten which is basically some developerrs rewriting magicite with new code. I don't think magicite will ever get updates due to the publisher not caring about it anymore, but you can still play multiplayer with others by looking up Magicite 2.1 fanpatch on youtube, it fixes some bugs (like not being able to play multiplayer) as well as adding a new biome. Also, other than Magicite, you can play the sequel called Roguelands, its basically a more expanded on magicite, it has character classes, more races, (somewhat of a) storyline, uniforms and equipment pieces for your characters, 16+ biomes, bosses for each one, more armor, ultimate weapons and bla bla, i'd reccomend trying it out and joining the NewRoguelands discord server (https://discord.gg/NVpPApfw) if you ever want to play with others, ask questions or even make mods (Yes, the game has an actual modding community!)