You might be mistaken, the Monogame Github README cites Celeste as an example made with it.
Ah weird. Did a bit of searching and it looks like maybe it targeted multiple frameworks with the xna API. Including xna itself
https://www.pcgamingwiki.com/wiki/Celeste https://celeste.ink/wiki/Version_history
Ah weird. Did a bit of searching and it looks like maybe it targeted multiple frameworks with the xna API. Including xna itself
https://www.pcgamingwiki.com/wiki/Celeste https://celeste.ink/wiki/Version_history