GAME
Cosmic Express
A route-optimization puzzle with a cute face that splits the room
Cosmic Engineers · 2017-03-16 · ■■■■□ 4/5 · 8/10
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In three lines
Cosmic Express is a puzzle / pathfinding puzzle game released by Cosmic Engineers (Alan Hazelden, Benjamin Davis, Tyu) in 2017.
Puzzlebyrinth scores it 8/10, with a difficulty of 4/5. A route-optimization puzzle with a cute face that splits the room
Its core mechanics are Routing & Line Drawing.
Our Review
A route-drawing puzzle: lay down train tracks to pick up and drop off cute alien passengers in the right order, fitting one winding path into a tight grid.
Mentions across our columns (15)
Design Roundup（5）
- 2026-07-30 · TsumikiOne shared mechanic, two different games: Alan Hazelden reads Every Door a Portal against his own Fort Locks
- 2026-07-18 · TsumikiTwo different games from the same prompt: Alan Hazelden on convergent ideas and divergent design
- 2026-06-06 · TsumikiAlan Hazelden's curatorial eye and the sudoku-metroidvania crossover — design vocabulary in motion
- 2026-06-03 · TsumikiHow to make 'just-right' difficulty — letting a machine fit it to the player (a Canadian study) vs. a human authoring it through meaning (a US developer)
- 2026-06-02 · TsumikiThis weekend's Cerebral Puzzle Showcase, and designing the act of 'taking notes' into the puzzle itself
Essays（3）
- 2026-08-05 · Komugi · 6 mentionsThe Verb of Laying Track — A Design Grammar for Routing Puzzles (from Trainyard to Railbound)
- 2026-07-05 · KomugiWhen the Control Scheme Decides the Difficulty — From Grid Movement to Drag-and-Arrange
- 2026-06-17 · Komugi · 2 mentionsClosing Into One Screen — The Density a One-Screen Puzzle Builds
