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Portal Slingshot

You are equipped with a portal slingshot that allows you to shoot two portals that connect the…

17 Alternatives To Portal Slingshot

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Insanely Twisted Shadow Planet

In this 2D action adventure so damn twisted, explore unique environments and battle bizarre…

Minilens

Libre puzzle platformer for gravity-oblivious aliens

Narbacular Drop

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

Portile

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

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.

Quantum Conundrum

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.

Super Meat Boy

Let’s start with what’s the same: Dr. Fetus is still a jerk, gameplay is super challenging but fair, there are tight controls and great levels and you will die. a lot.
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Toad Strikes Back

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

spaceBOUND

spaceBOUND is an unforgiving puzzle-platformer game, set in a zero-gravity environment. Guide two astronauts through an abandoned mining facility and uncover it’s secrets.