Unable to open celeste | Mt. Celeste Climbing Association | Page 1

somber lava Mar 30, 2026, 7:42 AM

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When I run the Celeste.exe file, nothing happens. The game didn't crash. It didn't start in the first place. I faced this problem a few days ago, and I ended up fixing it by reinstalling everest. Now it happened again. Does anyone know what caused it?

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Unable to open celeste

lavish path Mar 30, 2026, 7:48 AM

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is there anything at all in log.txt? does the file modification time change?

frail portalBOT Mar 30, 2026, 7:48 AM

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There are two types of logs; crash logs and log.txt.

Crash logs are generated when you see an "Oooops! :(" crash handler screen. They contain extra information which regular logs don't.
To access those, there's a button that says Open log file folder, which should take you to where they're stored. Make sure to grab the latest one!

For more subtle issues, non-crashing problems or other miscellaneous stuff, log.txt is checked. To find it, do the following:

Open Olympus.
Press the Manage button in the Installations panel on Olympus' main menu. (it's to the left)
Press Browse to open the Celeste folder.
Look for the file named exactly log.txt inside that folder. Do not grab error_log.txt or look into the LogHistory folder as those are not the log.txt you're looking for.

Your username may sometimes show up in those logs. If you're concerned about that, remember to censor it before uploading. Every text editor should have a replace function, commonly opened with Ctrl+H.

somber lava Mar 30, 2026, 7:48 AM

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no nothing happens

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lavish path Mar 30, 2026, 7:49 AM

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hm

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can you try running celeste from the console?

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failing that, can you try doing the steam appid trick and then running from console?

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If you make a file called steam_appid.txt next to Celeste.dll, containing the magic number 504230, then Steam will not relaunch Celeste, which can be useful in some cases.
Note that Steam still checks if you own the game in this case.

somber lava Mar 30, 2026, 7:51 AM

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lavish path can you try running celeste from the console?

this doesn't work either

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like this?

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no, it doesn't work either

lavish path Mar 30, 2026, 7:53 AM

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:o scary!!!!

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does it exit instantly or after a delay?

somber lava Mar 30, 2026, 7:54 AM

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after a delay on steam

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nothing actually happens if you directly run Celeste.exe

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a few days ago I also had this problem, and I fixed it by reinstalling everest. I have no idea what happened

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it happened again

lavish path Mar 30, 2026, 7:58 AM

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hm <@&673391557939953684> any ideas?

somber lava Mar 30, 2026, 1:59 PM

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i didnt do anything but it fixed itself thinkeline i have no clue what happened

somber lava Mar 30, 2026, 3:24 PM

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maybe it's because of the cache of my own mod?

#Unable to open celeste