SlipSlop: World's Hardest Platformer Game
Early access since Jun 2019
One button platformer nightmare
82% positive · 1,671 reviews
Not yet
In early access, development status unclear
Low confidence
Development Uncertain
Not yet
In early access, development status unclear
Low confidence
Development Uncertain
Where to get it
Free on Steam
Evaluation
SlipSlop launched into Early Access on June 28, 2019. The developer — a solo creator working under the 10F label — was fairly active in the first year: a series of feature patches came in July 2019, followed by a substantial major update on October 7, 2019 that added 168 levels (bringing the total to 208), difficulty groupings, leaderboards, achievements, and Linux support. The last communication from the developer was a small bug-fix post on June 14, 2020 that finished implementing six hidden achievements that had been left incomplete since the October 2019 update.
Since June 14, 2020, there has been complete silence from the developer — no patches, no devlogs, no announcements of any kind. The game remains in Early Access, meaning the developer has never declared it finished or shipped a 1.0 release. The July 2019 update listed future plans including more levels, character customization, and achievements — none of those items have been addressed in any subsequent post. Given that over six years have passed since the last developer communication with no explanation offered, it is unclear whether development is ongoing or has been quietly abandoned.
Evidence
Major update added 168 new levels, difficulty groupings, leaderboards, achievements, and Linux support. Developer noted 8 achievements still not fully implemented at the time.
Feature patch with physics improvements and UI redesign. Developer listed future plans: more levels, achievements, and character customization.
Media
Details
Developer
Publisher
10F
Achievements
32
Platform
Windows, Linux
Controller
partial support
Steam Deck
Not rated
Players
Single-player
About this game
SlipSlop is a minimalistic one button platformer game where all you can do is jump and your goal is to go from platform to platform till you reach the top in as short of a time as possible.
It sounds simple, but all the platforms behave differently and add a lot of variety and puzzle elements, and can make the game difficulty be all over the place.
There are 3 main types of platform material: platforms with little friction; frictionless; and sticky (100% friction) platforms.
The said platforms can have multiple behaviours: they can move both ways or one way or be static; they can disappear; destroy on touch; and they can be accelerator platforms.
The speed, size and range of the platforms is also a put in the equation.
All these variables can not only make each level a completely different puzzle from the previous one, but each level can be completed in several different ways which can make the game quite challenging if you are after the high score.
Also, the start menu is an infinite level to help you warm up and practice :)
Because the levels can have all sorts of variety and difficulty I would greatly appreciate it if you gave me some feedback about what kind of levels you prefer.
It sounds simple, but all the platforms behave differently and add a lot of variety and puzzle elements, and can make the game difficulty be all over the place.
There are 3 main types of platform material: platforms with little friction; frictionless; and sticky (100% friction) platforms.
The said platforms can have multiple behaviours: they can move both ways or one way or be static; they can disappear; destroy on touch; and they can be accelerator platforms.
The speed, size and range of the platforms is also a put in the equation.
All these variables can not only make each level a completely different puzzle from the previous one, but each level can be completed in several different ways which can make the game quite challenging if you are after the high score.
Also, the start menu is an infinite level to help you warm up and practice :)
Because the levels can have all sorts of variety and difficulty I would greatly appreciate it if you gave me some feedback about what kind of levels you prefer.
Last evaluated Jun 26, 2026
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