Superliminal review

Superliminal is the easiest recommendation for someone new to 3D puzzle games. Pillow Castle's Steam page calls it a first-person puzzle game based on forced perspective and optical illusions: the size of an object depends on how you look at it, so changing your viewpoint changes the solution. The story sends you through a dream therapy program, with a fully voiced guide and an AI assistant. Pillow Castle added developer commentary and a Challenge Mode for speedrunners, and Steam lists Workshop support, a level editor and online multiplayer modes. It is the only game here with Windows, Mac and Linux builds on Steam. At $19.99 it costs twice as much as Portal 2, and the minimum spec asks for a GTX 750 with 3 GB of VRAM and 12 GB of storage. We compared documented features and published prices and did not play-test it.

Who it is for

newcomers who want a short, mind-bending first-person puzzler

Price

$19.99 one-time on Steam (US store).

using the ambiguity of depth and perspective. $19.99 Buy on Steam
Quoted from the vendor pricing page on November 12, 2026.

Key features

• Forced perspective and optical illusion puzzles
• Fully voiced story set inside a dream therapy program
• Challenge Mode added for speedrunners
• Developer commentary throughout the game
• Steam Workshop and an included level editor

Strengths and weaknesses

• Strength: Only game here with Windows, Mac and Linux builds plus a level editor
• Strength: Full controller support listed on Steam
• Strength: Steam lists online co-op and PvP modes beyond the main story
• Weakness: $19.99, double the price of Portal 2
• Weakness: Minimum spec asks for a GTX 750 with 3 GB of VRAM
• Weakness: Steam lists 12 GB of storage, more than The Witness or Manifold Garden

Key facts

• Release date: November 5, 2020
• Developer: Pillow Castle
• Platforms on Steam: Windows, Mac, Linux
• Minimum RAM: 4 GB
• Storage: 12 GB

Where it ranks

Superliminal is No. 2 in our Best 3D Puzzle Games verdict.