Half-Life and Portal. It’s hard to think of another two games that so instantly and consistently spark peoples’ enthusiasm – mention either of Valve’s iconic series to basically anyone with a gaming PC, and chances are they’ll loose a string of superlatives about how Gordon Freeman, GLaDOS, and the Companion Cube et al completely changed their idea of what games can be. Almost 20 years since the last full instalment, we’re still waiting on Half-Life 3. Likewise, Portal 3 remains one of gaming’s mythical beasts. We hear stories, but we’ve never seen anything solid. However, with Steam Next Fest now upon us, we’ve unearthed the next (no pun intended) best thing, a physics-driven puzzler with flashes of Aperture Science, Black Mesa, and some of the best parts of Half-Life and Portal combined. And you can try it now for free.