An old-school, tough-as nails classic linear 3D platformer with a faithful PS1 cartoony aesthetic.
All Reviews:
Very Positive (106) - 89% of the 106 user reviews for this game are positive.
Release Date:
Dec 6, 2021

Sign in to add this item to your wishlist, follow it, or mark it as ignored

Early Access Game

Get instant access and start playing; get involved with this game as it develops.

Note: This Early Access game is not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“I plan on continuing development steadily until reaching my original goals for the amount of content in the completed game, proceeding always in close contact with the community of players to address their feedback, as I have done so far. However, by its very nature the game can be challenging and enjoyable even in a partial state. I believe an Early Access period from a beta to a finished state can be beneficial both in terms of the feedback from players and the content that they would get to enjoy in advance. I plan therefore to mantain the current development schedule after Early Access release until the game is completed.”

Approximately how long will this game be in Early Access?

“Roughly until early to mid-2022.”

How is the full version planned to differ from the Early Access version?

“The full version will include a number of additional levels and bossfights to complete the original vision for the total amount of content. In addition, I plan to add a few cutscenes, and minor improvements to the engine and quality of life adjustments.”

What is the current state of the Early Access version?

“At the time of release of the Early Access version, it will have roughly 18 available levels/bosses, constituting around 2/3 of planned content. The state of the engine and game functionality are already mostly in their final state.”

Will the game be priced differently during and after Early Access?

“I do not plan to change the price when we leave early access.”

How are you planning on involving the Community in your development process?

“Just as I've been doing up to this point, I remain in close contact with the community of players, especially within the Discord server, where I frequently run additions and modifications by them. This collaboration should continue, strenghtened, after Early Access release throughout final release.”
Read more

Download PsiloSybil Demo

Buy PsiloSybil

See all discussions

Report bugs and leave feedback for this game on the discussion boards

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.


  • 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

System Requirements

    • Requires a 64-bit processor and operating system
    • Storage: 150 MB available space
    • Requires a 64-bit processor and operating system

What Curators Say

8 Curators have reviewed this product. Click here to see them.

Customer reviews

Review Type

Purchase Type


Date Range
To view reviews within a date range, please click and drag a selection on a graph above or click on a specific bar.

Show graph

Filter reviews by the user's playtime when the review was written:

No minimum to No maximum
Display As:
Show graph
Hide graph
Excluding Off-topic Review Activity
There are no more reviews that match the filters set above
Adjust the filters above to see other reviews
Loading reviews...