Very creative and fun, Episode is varied and a great example of Valve being in the zone. A great albeit tantalising “conclusion” evidently leaving the world wanting more. Google and read “Epistle 3”!

An OG LAN party co-op shooter, whose influence cannot be understated. Incredibly fun if you can get a stack together, especially IRL.

More of the same but better. Tremendous fun with friends, especially if you can get in the same room. Valve struck on something simply fun and perfected it here.

A tense 2D puzzle platformer with a gorgeous art style. LIMBO was one of the more inspirational indie games that changed the game at the time, and deserves a playthrough.

Probably peak EA. For its time, a very unique and interesting take on what fast, first person games could be - but great controls and even better mapdesign seemingly stop it from aging at all.

An adorable puzzle platformer with co-op support (albeit requiring an independent save) with amazing visual & character design and an even better soundtrack.

Short and sweet, Portal has a simple concept which lends itself to all levels of complex puzzles. Nowadays it lives in the shadow of it’s unbelievably good sequel, but the concepts started here.