SCP:CB (v1.3.11) - Speedrun - Gate B Ending 1 Any% (
I know people will comment that this doesn't count because it's a pre-played mapseed, but Any% is a category on speedrun.com for this exact scenario.
https://www.speedrun.com/user/Nepheron
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Containment Breach - http://www.scpcbgame.com
Patreon: / nepheron
Ko-fi: https://ko-fi.com/nepheron
Twitter: / nephgaming