Opus Magnum
Build a machine that makes gold, then spend three hours making it smaller — 97.1% positive, nine years old, and still receiving patches a fortnight ago.
8.5 / 10
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Zachtronics
6 games by Zachtronics reviewed here.
Browse the reviews
6 reviews
SHENZHEN I/O
You move to Shenzhen, take a job building circuits, and read a manual you're expected to print out — and the most-upvoted negative review, at 905 votes, recommends it anyway.
8 / 10
SpaceChem
The game that started a genre, fifteen years old, and the lowest-rated of the seven engineering puzzlers in this library — which turns out to say more about being first than about being worst.
8 / 10
TIS-100
The most austere game Zachtronics ever made, and the one whose store page promises least — which is exactly why it rates higher than the siblings that promised more.
8 / 10
EXAPUNKS
A 1997 hacker fantasy where you write assembly to keep a disease at bay — and where the puzzle is usually working around what the language deliberately can't do.
7.5 / 10
Infinifactory
Zachtronics in three dimensions, and the one its own siblings' reviewers keep calling fun — except it rates below them, costs the most, and its critics say it isn't the factory game the name implies.
7.5 / 10