Celeste Doom

Doom, Doom II: Hell on Earth and Final Doom in Celeste · By grubbycoder (Grubby); based on sinshu's Managed Doom

Plays inside your own copy of Celeste, on your device, not in a browser tab. Opens gamebanana.com in a new tab.

How to play

Have your own copy of Celeste (Everest) installed: the mashup plays inside it.
Download it from its release page on GameBanana.
Install it as its page says. What it asks for is just below, in the list's words.
Start the game the way its page says: some mashups come with a launcher of their own.

What it asks for

Celeste with Everest; user-supplied Doom WAD (Kex/Unity rerelease UIs break)

In the words of the mashups list, read Oct 21, 2026.