REVIEW · 2017-03-16
Cosmic Express
A route-optimization puzzle with a cute face that splits the room
Introduction
Lay down a single-stroke rail line for a tiny railway spreading colonies across space. Pick up and drop off alien passengers at the right stops, and link to the exit without ever crossing your own track. Round-eyed characters and a pastel cosmos greet you; it looks like the friendliest of puzzles. Made in 2017 by Cosmic Engineers (Alan Hazelden, Benjamin Davis, Tyu) and published by Draknek & Friends.
I write this from the Steam review pool. The label is 'Very Positive,' the user score around 90-92%, with roughly 470 reviews (varies by date, 2026-06-13 snapshot). Yet one piece of press I read (HonestGamers) gave it 5 out of 10 and dismissed it as dull. The gap between that aggregate and that sharp single verdict is the way in.
And what divides opinion is neither story nor price. It is one thing: difficulty. The top tag is 'Difficult,' yet right beside it sit 'Relaxing' and 'Casual.' The same train puzzle is written up by one player as soothing and by another as torture. That split is the line I want to read along.
Cosmic Express — Steam screenshot
First Impressions
I want to start at the Steam tag box. The most-applied tag on Cosmic Express is 'Difficult.' Right below it sit 'Cute,' 'Relaxing,' and 'Casual.' The same little train puzzler is filed as brutal by some and soothing by others. The split is visible before you read a single review.
Across the helpful positive reviews the recurring line is 'don't be fooled by the looks.' People boot it up for a casual hour and lose an hour to a single board near the end. The negative side reads that same gap as a bait-and-switch: a children's face over a merciless interior.
From the pool I read, this split is the way into the design, not a flaw in it. The distance between surface and difficulty is deliberate — a question of reach, of who the game is for. The rest of this piece translates that reach into design terms.
Cosmic Express — Steam screenshot
Putting the Mechanics into Words
Every review keeps the rules short: lay one track, pick up colored passengers, drop them at the matching station, never cross your own line, mind the seat limit. The positive reviews are right to praise the economy. The verb you learn is essentially one — draw a line.
In Puzzlebyrinth's vocabulary this is thorough subtraction of verbs. The player's action is narrowed to drawing a route, and difficulty is stacked on the constraint side, not the verb side. Seat count binds order; the no-crossing rule binds space. The constraints are this game's grammar.
Each world adds one word to that grammar: two-seat cars, green slime riders who foul a seat so no one else will sit there. It is less a new verb than a new tense on the old one. When reviewers say 'instantly clear, yet unsolvable,' they are naming the gap between a thin vocabulary and a thick grammar.
Cosmic Express — Steam screenshot
The Texture of Difficulty
This is where opinion splits hardest. The positive side calls it 'chewy,' 'brain-bending'; the negative side calls it 'unfair,' 'brute-force in the end,' 'no payoff even when you win.' One outlet (Save or Quit) notes how low the achievement rates are — many players leave the last few boards of each world unfinished and move on.
Collect the stuck moments and the difficulty isn't one color. I'd sort it into three textures: order — who boards and alights in what sequence; route — drawing a single non-crossing path through space; side effects — reading state-changers like the slime. Late on, all three fire at once and the options combinatorially explode.
'Too hard' and 'just right' divide because players get stuck on different textures. Those stuck on order fall into brute force and feel it as unfair; those stuck on space hail the one move as insight. The same board becomes a different experience at a different observation resolution. This is about the quality of difficulty, not its quantity.
Cosmic Express — Steam screenshot
Place in the Lineage
Reviewers reliably reach for neighbors when describing it: Sokoban, the increpare catalogue, and Hazelden's own Sokobond. One sharp HonestGamers piece even calls it 'Sokobond's negative image,' faulting it as mechanical and short on surprise.
To me it sits squarely in Draknek's lineage of varying a single verb. Just as the same publisher's A Monster's Expedition unfolds 'topple a tree,' this unfolds 'draw a line' into route optimization. It runs opposite to Baba Is You, which rewrites the board's meaning: that game adds grammar, this one subtracts verbs.
On sheer mercilessness, reviews that invoke Stephen's Sausage Roll make sense, though the feel differs. That game stalls you on the weight of one move; this one stalls you on the combinatorics of a whole path. Placed in the lineage, Cosmic Express is the minimal unit of the route-optimization puzzle, wrapped in a cute skin.
Cosmic Express — Steam screenshot
Sources
This article was written from the user reviews on the Steam store page and from professional reviews, as of 2026-06-13. No review text is quoted; typical claims are reconstructed.
・Steam: Cosmic Express (label 'Very Positive'; user score roughly 90-92%, around 470 reviews total. 'Difficult' is the top tag, sitting alongside 'Relaxing' and 'Casual.' Snapshot 2026-06-13, cross-checked with SteamSpy.)
・Read the helpful positive and negative trends and the community's observations on achievement rates. Reported clear times vary widely, roughly 6-12 hours.
・For press I consulted HonestGamers (5/10, faulting it as mechanical and unsurprising) and Save or Quit (noting difficulty and achievement rates). Development and date facts follow Wikipedia.
Closing
The numbers first. Steam's user rating is 'Very Positive,' the user score around 90-92%, total reviews roughly 470 (it drifts by date; snapshot 2026-06-13). Yet one professional piece I read gave it 5 out of 10 and dismissed it as dull. The gap between the aggregate and the sharp individual verdict is real.
On design grounds I give it 8.0. The build — subtracted verbs, a grammar of constraints — is unusually clean for the genre. HonestGamers' jab at the lack of surprise isn't wrong: this is close to a paper puzzle book and has no interest in flattering you with spectacle. But that's a question of reach, not a defect. For a player whose observation resolution finds route optimization itself fun, the cleanness flips into a virtue.
So Cosmic Express isn't a game to recommend to everyone. Some who bought the cute skin will drop off late and say so honestly in their reviews. Those who stay sink into a 'one-stroke universe.' The clean split in opinion is evidence that the author narrowed the reach on purpose — and I respect the nerve of it.
Cosmic Express — Steam screenshot
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