Portal Alternatives

Quantum Conundrum is a First-person Perspective game with strong Sci-fi, Puzzle-Platform, and Single-player elements published by Square Enix and developed by Airtight Games.

"A game with half of the attention to detail and imagination Antichamber has would be a smash hit - this bare-bones first-person puzzler is one of the most thought-provoking, engaging, and challenging video games ever developed.

Proteus - Proteus is a great electrical suite for circuit simulation purposes. You can simulate a single processor or multiple ones at the same time. The application is a great alternative for Virtual System Modelling.

Portile is a 2d, tile-based take on Narbacular Drop (more than Portal, because momentum plays a big...

Using two interconnected portals you can place on walls, ceilings and the floor, you must navigate your way through a sentient dungeon.

What happens when you mash Super Mario Bros. and Portal together?

The Stanley Parable is an Action, First-person Perspective, Puzzle-Platform, Exploration and Single-player video game created and published by Galactic Cafe.

Toad Strikes Back is fan game based on classic Super Mario Bros. titles.

Periscope plugs directly into your databases and lets you run, save, and share analyses over billions of data rows in seconds.

Philosophical first-person puzzle game.

The savings lottery where you never lose

A free open source game with teleportation.