GameSpot may get a commission from retail offers. In the Portal games, the rogue AI GLaDOS gets her kicks by putting players through a series of deviously designed test chambers. Valve is giving ...

If you fancy making your own maps, models, skins, or other exciting new things for Portal 2, you can now get cracking as Valve has released a beta version of the first-person puzzler's PC mod tools.

Gaming Desks Best gaming desk in 2025: my top picks for standing, sitting and everything in between Handheld Gaming PCs Best handheld gaming PC in 2025: my recommendations for the best portable ...

Valve cares about education, and their latest initiative to turn Portal 2 into an educational tool is the company putting its money where its mouth is. At the Games for Change conference, the ...

The same tools were used to make the game itself, and will allow makers to create their own singleplayer and co-op maps etc. Ever wish you could make your own maps and design your own puzzles in ...

Valve has collaborated with educators to create a set of free learning tools called Teach With Portals. The tools were designed by teachers with help from Valve's designers, based on the recently ...

One Minecraft creator has rebuilt Portal 2, using the tools available to every player. A Minecraft player by the name of Lag Master163 put together the Portal 2 map featured in the video below. It's ...

Valve's released the Authoring Tools kit for Valve 2, enabling you to make your own levels for the game. The tools included in the kit allow you to create any type of mod for the game: single-player ...