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HomeFormats.BEPISID

What is a .BEPIS file?

BEPIS is a save file from the game ULTRAKILL, storing your progress as a .NET BinaryFormatter stream. Analyser decodes it into your money, weapons, level and difficulty progress, per-level ranks and Cyber Grind high score.

Did you know
  • ULTRAKILL, released in 2020, gives its save files the joke extension .bepis.
  • Under the joke extension, an ULTRAKILL save is actually a .NET binary serialisation stream (MS-NRBF) with its bytes in little-endian order.
  • ULTRAKILL was made by Arsi “Hakita” Patala and published by New Blood Interactive.
What Analyser reads
Read ULTRAKILL save files (BEPIS) - decoding the .NET BinaryFormatter stream into your actual progress: money and unlocked weapon variants, furthest level and difficulty reached, per-level ranks, secrets and best kills/style/time, and your Cyber Grind high score (wave, kills, style and time).
Depth of analysis
.BEPIS is an identification-grade format: Analyser recognises it from its bytes and decodes the header metadata it carries, rather than opening it in a full viewer. Formats that do get a full viewer are marked "Full" on the formats page.
Open a .BEPIS file
Drag a .BEPIS file onto the Analyser home page (or tap to pick one). It is identified entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.
Related formats
Browse the full list of supported file types.