What to do now ?

[SHAIDERWOW]

I've already completed 100% achievements and unlocked all the abilities... so now what?
Give me an idea of what else I could do
(this isn't a complaint or anything, I’m still going to play the game. I was just thinking about it...)

[Chry Ceph]

Have you completed the eclipse ranks? If not, try that.

[lecoqaveugle]

Now start modding.

[The Official Dwayne "The Rock" J]

eclipse!!!!!!

[havenharpy]

Depends mostly on what your looking for.
If youre looking for a challenge, I highly recommend trying out Eclipse mode, which is located in alternate gamemodes tab like Prismatic Trials/Simulacrum. It's sort of like a new game+ kinda mode, where everytime you complete a run on a survivor in Eclipse, the a new modifier gets added to the game mode, making it a lot harder than last time.
If youre looking to just experience additional content, there's plenty of mods that range from QoL, additional content, bugfixes, and more on R2Modman/Thunderstore.io.
If you want to spice up your vanilla experience, try experimenting with different artifacts and character alternate abilities to keep your runs feeling unique and interesting.

[laslax]

It's time for you to do the egregious grind of Eclipse. Do not resist.

[javier]

I like do runs beating all 3 bosses on monsoon without going into loop with each character

[Yagi]

Originally posted by SHAIDERWOW:

I've already completed 100% achievements and unlocked all the abilities... so now what?
Give me an idea of what else I could do
(this isn't a complaint or anything, I’m still going to play the game. I was just thinking about it...)

eclipse is the only way for you now