Level 9223372036854775807
Secret levelAlso searched as: the infinite staircase / max int level
Updated July 20, 2026 · Verified for v1.3.2
An endless dark spiral staircase, named for the largest 64-bit integer, with openings that look out onto a white void. Reached from Level 1's upper floor with the ID Card. It's completely safe; the only way to lose is to jump too early.
How to escape Level 9223372036854775807
Climb the staircase reading the floor numbers as you go. Somewhere up there one floor is mislabeled '94', and that's your cue: jump down the center of the staircase from there to trigger the Suburbs ending. The mislabeled floor sits higher on harder difficulties, so on Nightmare you may be climbing a long way.
Clear it and you move on to The Suburbs ending → The Bunker.
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Compiled & code-checked by lhb · verified for v1.3.2. Spot an error? Tell us.