PsiloSybil

PsiloSybil

Released Oct 2024

An old-school, tough-as nails classic linear 3D platformer with a faithful PS1 cartoony aesthetic. 25 fully original levels, boss fights, collectibles, time-trials, and many secrets.

85% positive · 258 reviews
Done
All announced content has been released
High confidence
Done
All announced content has been released
High confidence

Where to buy

Steam $12.99
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Evaluation

PsiloSybil is a completed game. The developer explicitly announced the end of content development on September 25, 2024, in a post titled "New Level: Ground Meat -- Final Update!" In that post, they stated: "PsiloSybil development is finally over" and "This is the last content update." The developer also shared a personal note about a cancer diagnosis, explaining their motivation to deliver the game in a finished state they could be proud of. The game officially released as version 1.0 on October 2, 2024, with all 25 levels complete. Following the final content update, only bug fix patches were released (versions 1.0.1-b and 1.0.1-c), consistent with a developer honoring their promise to provide post-launch support without new content. There are no unreleased DLC listings, no roadmap for future content, and no developer statements suggesting anything further is planned. The game launched as a fully complete product.
Evidence
Developer explicitly states 'PsiloSybil development is finally over' and 'This is the last content update,' delivering the 25th and final level (Ground Meat). Developer also discloses a cancer diagnosis as personal context for completing the game.
news post · Sep 25, 2024 source development ending
high
Version 1.0.0 released, described as 'finished' by the developer.
news post · Dec 8, 2023 source content shipped
high

Media

Details

Developer
Publisher
bad_vertex
Achievements
11
Platform
Windows
Controller
full support
Steam Deck
Verified
Players
Single-player

About this game

PsiloSybil is a classic linear 3D platformer with a faithful mid-90s look and brutal difficulty. You must guide plucky mushroom Sybil across a colourful world of devilish traps and defeat the evil master of all hogs, Lord Nutmeg, to set free all of shroom-kind. In each of PsiloSybil's handcrafted levels, alternating different playstyles and aesthetics, you'll meet a unique mushroom character held captive by Nutmeg's boar minions. Freeing them is not going to be easy!

The game also provides time trial challenges, and an optional arcade mode which reintroduces lives and removes collectables. It is also perfectly deterministic and employs no RNG, which makes it perfect for speedrunning.

PsiloSybil strives to reconstruct the classic look of PS1 titles. Not only are the world, characters, and objects modeled and textured with the limitations and visual trends of the time in mind: a full suite of visual effects ranging from vertex snapping to an emulation of composite analog video enhances the experience. All of this is customisable and you have detailed control over each component.

It may be an homage to a certain marsupial game.

Features

  • 25 fully original levels

  • Fast-paced old-school gameplay but with modern, responsive controls. Supports most gamepads natively

  • Trivial to learn, challenging to master

  • Much hidden and additional content, a real treat for the collectionist

  • Large, charming cast of fully animated low-poly characters

  • Fully customizable video effects

  • An arcade mode with limited lives for the real hardcore players

Last evaluated Jun 22, 2026
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