New alchemy puzzle game from Infinifactory creator bubbles into Early Access

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The creator of the daunting (and excellent) puzzlers SpaceChem (opens in new tab) and Infinifactory (opens in new tab) is back with a new game: Opus Magnum, in which you play an alchemist brewing potions and poisons.

It hit Early Access this week with a story-driven campaign, a puzzle editor and Steam Workshop support. Developer Zachtronics said it nearly skipped straight to a full release because the game is already "polished", but instead it's going to listen to feedback from players, make a few balance tweaks and then pump out the final version.

The premise is that you're an alchemist recently hired by a wealthy household in a dangerous, ancient city. Alchemy is the main way to get one over on your enemies—and protect you and your friends. So, you slot together machines with mechanical arms and customisable tracks to solve a series of puzzles. You'll create weapons, potions, remedies and gemstones that link to the game's story.

You can easily export gifs of your finished creations at the end of each puzzle, which is a nice touch. And if the intrigue gets a bit too much you can distract yourself with Sigmar’s Garden, an in-game alchemy-based solitaire game.

Opus Magnum is £13.94/$17.99 on Steam (opens in new tab), which includes a 10% launch discount.

Samuel Horti is a long-time freelance writer for PC Gamer based in the UK, who loves RPGs and making long lists of games he'll never have time to play. He's now a full-time reporter covering health at the Bureau of Investigative Journalism. When he does have time for games you may find him on the floor, struggling under the weight of his Steam backlog.