Arena Breakout: Infinite error 1400015 (recurring launch fail)
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Last checked
September 23, 2026
The game repeatedly fails to launch with error 1400015; a full reinstall clears it temporarily, but it comes back — sometimes within the same session, sometimes after a couple of weeks.
Also appears as: error 1400015, ошибка 1400015, arena breakout infinite 1400015
Two separate Steam Discussions threads describe the same pattern: error 1400015 blocks launch, deleting the ACE anti-cheat folder doesn't help, Steam's file-verification doesn't help, but a full reinstall gets the game running again — until 1400015 comes back later, in one case after "a couple of weeks" of normal play. Nobody in either thread, including the original posters checking back later, reported a fix that actually stuck, so this is treated as unresolved rather than solved by reinstalling.
What to try
- 01Reported
Uninstall game and launcher, delete AntiCheatExpert folders, reinstall
Uninstall the game and the launcher completely, delete any leftover AntiCheatExpert folders, then do a clean reinstall — this has gotten affected players back in temporarily, though multiple reports say the error eventually returns.
- 02Reported
Deleting only the ACE folder has not worked (reports)
Deleting only the ACE anti-cheat folder without a full reinstall has not worked for the players who tried it — don't expect that alone to fix it.
- 03Unconfirmed
Report it in Steam Discussions or to Morefun support with your build version
Report your case in Steam Discussions or to Morefun's support channel with your build version if it recurs — no official acknowledgement or permanent fix has surfaced yet.
Did this fix it for you?
Your answer helps the next player know whether these steps are worth trying first.
Hit this error? Leave a comment
Say where you are, what you see on screen, and whether any fix worked for you.
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What people are saying
Notes from players who've hit this one — no time limit, an answer from months ago is still an answer.
- Nothing reported here yet.
From isthisgamedownMatched on ""
From isthisgamedownMatched on ""
From isthisgamedownMatched on ""
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