TIS-100

TIS-100

Zachtronics · July 20, 2015 · Programming, Puzzle, Indie, Simulation, Difficult

Buy the TIS-100 key for Steam from Kinguin at $0.88 — the cheapest of 9 stores we compare.

PC
Overwhelmingly Positive97% · 4,11910playing now
Best price 82 Great time to buy
$0.88-87%
lowest tracked $0.84
Kinguin Buy at Kinguin

Prices last checked

More games under $5 →

Where to buy TIS-100 — official stores

Steam
Steam
Standard Edition · Steam
$6.99
Buy
Humble Store
Humble Store
Standard Edition · Steam
$6.99
Buy
GOG
GOG
Standard Edition · DRM-Free
$6.99
Buy
Fanatical
Standard Edition · Steam
$6.99
Buy

Cheapest TIS-100 keys — keyshops

Keyshops are third-party marketplaces — keys are resold and can be region-locked or a different edition. Check the listing's region & edition before buying.

Driffle INC
Standard Edition · Steam
$0.92
Buy
Kinguin
Standard Edition · Steam
$0.88
Buy
Gameseal
Standard Edition · Steam
$0.95
Buy
Eneba
Standard Edition · Steam
$1.08
Buy
CJS CD Keys
CJS CD Keys
Standard Edition · Steam
$2.21
Buy

Some store links are affiliate links — playze may earn a commission at no extra cost to you. It never changes the price you pay, and the cheapest confirmed price is always shown in the Best price box above.

TIS-100 price by region

TIS-100 costs £0.69 in the United Kingdom, €0.80 in Europe (EUR), $0.88 in the United States, $0.88 in Georgia (USD), zł3.66 in Poland, R$5.17 in Brazil, CA$7.79 in Canada, NZ$8.59 in New Zealand and A$9.49 in Australia right now.

Cheapest TIS-100 offer in each region, in local currency
RegionBest priceOfficial storeKey shopStores
United Kingdom £0.69 −85% £4.75 £0.69 7
Europe (EUR) €0.80 −84% €4.99 €0.80 8
United Statesyour region $0.88 −87% $6.99 $0.88 9
Georgia (USD) $0.88 −56% $1.99 $0.88 8
Poland zł3.66 −72% zł13.25 zł3.66 5
Brazil R$5.17 −70% R$17.49 R$5.17 4
Canada CA$7.79 CA$7.79 — 4
New Zealand NZ$8.59 NZ$8.59 — 3
Australia A$9.49 A$9.49 — 4

Each row is a real price from that region's own stores, not a currency conversion, so the figures are not directly comparable. Switch regions in the header to shop the one you buy in.

Trailers & screenshots

Watch the TIS-100 trailer →

About TIS-100

✦ AI summary

Reprogram a corrupted parallel computer by writing assembly code to solve logic puzzles and unlock its secrets. Compete globally on optimization leaderboards while designing your own challenges in built-in sandbox modes.

TIS-100 is an open-ended programming game by Zachtronics, the creators of SpaceChem and Infinifactory, in which you rewrite corrupted code segments to repair the TIS-100 and unlock its secrets. It’s the assembly language programming game you never asked for!

TIS-100 — game info

Platforms
Windows, macOS, Linux / SteamOS
Steam Deck
Unsupported
Player modes
Single-player
PC Game Pass
Not included
More games like this:Mac gamesLinux games

TIS-100 in the rankings

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

✦ AI summary

TIS-100 is a puzzle game where you write assembly language for a fictional CPU, and players consistently praise it as an engaging, thoughtful experience that captures the satisfaction of optimization and problem-solving, though it's deliberately challenging and may frustrate those expecting a traditional programming tutorial. The game appeals strongly to experienced programmers seeking a meditative, flow-state experience but works better as a brain-teasing puzzle game than as a practical introduction to real programming concepts.

Recommended Sep 25, 2026
Where some games imagine entirely fictional worlds and characters TIS 100 imagines a fictional CPU where you write a stripped down assembly language to solve puzzles. It is brilliant to play and unfortunately the most fun I've had programming this year. I code professionally and like many others have had huge portion of my workflow replaced with agentic AI. Every language feels the same now. Every code review feels so bloated. And we lost something. TIS 100 is a game where you get to enjoy the process. It's a slow burn meant to be played over a long period of time. I remember I like coding. I like thinking about CPU registers and writing tough logic. I like getting my code to run just that much faster. I miss the flow states you could get in while coding or doing long debugging sessions with coworkers. Anyway, I recommend the game. I played the first few levels with my dad, and now we compete on some later ones.
4 found this helpful
Recommended Sep 17, 2026
MOV UP, LIBRARY MOV TIS, FAVS ADD AMAZING GAME, WOULD RECOMEND MOV TIS, DOWN
3 found this helpful
Recommended Sep 14, 2026
I work in compilers. We made compilers specifically to stop having to write assembly by hand. This hurts my brain. Why have you done this to us, Zach, WHY?! 10/10 would suffer again.
1 found this helpful
Recommended Sep 27, 2026
I wish we had more games like this one
Recommended Sep 26, 2026
This game helped me realize I was never suited to be a programmer.
Recommended Sep 15, 2026
Fun puzzle game for the price advertised. I work on software many levels higher in abstraction to what this game simulates so I can't comment on how accurate it is. The closest thing to my line of work are synchronous/blocking communication systems. I haven't finished the game yet but I'm instinctively reaching for non-blocking or event driven patterns that don't work here. If you want to learn programming there are better resources and you'll likely be dealing with concepts higher than assembly instructions.

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