Steam Next Fest · Out 3 Nov

Atom By Atom

Coming 3 November

Build a factory around a black hole. Extract elements, route atoms through Matter Tubes, bond them with valence-driven chemistry, and scale precise molecular production lines atom by atom.

Windows · Mac · Linux · Browser
Atom By Atom key art
Sum45 key art
Out now

Sum45

Think. Swap. Solve. Swap tiles until every row and column hits its target sum — 135 levels, endless puzzles, and a timed rush mode.

Coming soon

Coming soon

Details when the Steam page goes live.

Coming soon

Coming soon

Details when the Steam page goes live.

Coming soon

Coming soon

Details when the Steam page goes live.

An independent studio in the Netherlands.

Games about building systems and watching them run. Built in Godot for Steam, itch and iOS.

About the studio
15 September 2026 · Atom By Atom

Thank you for 100 wishlists

The first hundred wishlists for Atom By Atom are in. Thank you to everyone who played the demo, sent feedback, or added the game to their list.