Sigma World Online

Sigma World Online

Crematorium of Time · September 4, 2026 · Simulation, Sandbox, Isometric, MMORPG, Space Sim

Buy Sigma World Online from Steam at $4.99 — the cheapest of 1 store we compare.

PC
Mostly Positive70% · 40 📉 Recent reviews down 59%14playing now
Best price 24 Fair price
$4.99
lowest tracked $4.49
Steam Buy at Steam

Prices last checked

More games under $5 →More Steam deals →

Where to buy Sigma World Online — official stores

Steam
Steam
Standard Edition · Steam
$4.99
Buy

Sigma World Online price by region

Sigma World Online costs £4.59 in the United Kingdom, $4.99 in the United States, €5.19 in Europe (EUR), $5.69 in Georgia (USD), CA$5.99 in Canada, A$6.95 in Australia, NZ$7.89 in New Zealand, R$19.49 in Brazil and zł21.49 in Poland right now.

Cheapest Sigma World Online offer in each region, in local currency
RegionBest priceOfficial storeKey shopStores
United Kingdom £4.59 £4.59 — 1
United Statesyour region $4.99 $4.99 — 1
Europe (EUR) €5.19 €5.19 — 1
Georgia (USD) $5.69 $5.69 — 1
Canada CA$5.99 CA$5.99 — 2
Australia A$6.95 A$6.95 — 1
New Zealand NZ$7.89 NZ$7.89 — 1
Brazil R$19.49 R$19.49 — 1
Poland zł21.49 zł21.49 — 1

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.

Screenshots

About Sigma World Online

Sigma World Online - is an online sandbox with a huge world from many star systems. Choose who to be: space explorer, miner, merchant, farmer, culinary specialist, scientist, builder or hunter, or build your empire.

Features of the project:
  • Full interaction of players in the same game universe
  • Generated star system: planets, satellites and asteroids
  • Automatic creation of a starter star system for beginners every 3 in-game years (36 real days)
  • Ecology of planets and satellites, pollution and contamination of planets
  • Large tech tree and drawing table to speed up research
  • Space flights, moving between different worlds
  • Meteorites and gathering resources in space
  • The construction of space stations with warp engine
  • Primitive, solid propellant, ion and nuclear rocket engines
  • Generation of properties of races of animals, development and life of animals in the environment, silicon life
  • Character skills, genetics and abilities
  • Combined cooking, product compatibility studies when creating dishes
  • Crafting and various resources
  • Various equipment: furnaces, crushers, refrigerators, etc.
  • Research potions on the laboratory table. Buffs and debuffs
  • Building
  • Terraforming the map
  • Farming and hydroponics
  • Private territories
  • Fully destructible environment
  • Transport: cars, boats, amphibians and tanks
  • Trading stations for offline trading between players
  • Ratings
  • Clans and friends
  • Robotics


In the plans:
  • New types of planets and space bodies
  • New star clusters
  • Construction of a collider to obtain antimatter
  • Antimatter Quantum Engines

Sigma World Online — game info

Platforms
Windows
Player modes
Single-player, Online co-op
PC Game Pass
Not included

What Steam players say

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

Not recommended Sep 17, 2026
Very slow game with not much to offer honestly and if no ones playing it, well the game is basicly not really playable.
2 found this helpful
Recommended Sep 13, 2026
Very slow paced, semi-idle game. Simple gameplay loop: acquire materials while waiting for research, later research requires new resources from other planets, acquire those materials while waiting for research. Only major downside is the lack of an official server. This isn't an a huge problem unless you want to play this similar to a MMO, but that does lead to issues with land claims and "limited" resources.
1 found this helpful
Not recommended Sep 12, 2026
ok so this game was made by Uncle Alex who put a lot of work into it. With that said it really needs more work and has huge potential first off it needs dedicated servers,second a bit of tweaking, but mostly i just needs tender loving care from its creator who mentioned he put it on steam because it was just sitting on his shelf gathering dust. so who know how this will turn out. current biggest hic-cup is steam doesn't see the servers at times making logging in without a direct connect impossible. looking forward to seeing what happens in a few months since writing my review i can no long give a thumbs up several times the game crashes or does a lag spike and you lose hours and thousands of materials you spent an hour or more farming
1 found this helpful
Not recommended Sep 21, 2026
Slow. Way too slow. It takes away any chance of actually enjoying the progression. The graphics are abysmal, though that was of course expected. What wasn't was the animations, which are few and simplistic, even compared to the graphics in general.
Recommended Sep 16, 2026
This game has so much potential and for only a few bucks it has a TON of content. Its a bit rough around the edges and has a bit of a learning curve but I've paid way more for way worse. 100 hrs in and im still finding new things and have plenty of other things to do.
Recommended Sep 13, 2026
Alright game, hopefully it gains some more traction and a larger community can form. Could do with a bit of control/inventory/crafting polishing. The player energy mechanic disrupts the flow in my opinion, but I enjoy smoking cigars to recover, maybe make them cheaper to craft.

Community reviews

—

0 reviews

Sign in to write a review.

No reviews yet. Be the first to review this game.

More like Sigma World Online

News

All news →
Final Fantasy XI price: what you pay, then keep payingPC

Final Fantasy XI price: what you pay, then keep paying

The Final Fantasy XI price is two numbers, and the subscription is the one that matters. Our tracked low, what the Ultimate Collection includes, and when buying at list is correct.

Oct 16, 2026
Castlevania Belmont's Curse price: which edition to buyPC

Castlevania Belmont's Curse price: which edition to buy

The Castlevania Belmont's Curse price splits in two: Steam charges full list, authorised resellers a quarter less. Our record says that 25% has not moved since June, and is the floor.

Oct 16, 2026
Hogwarts Legacy price history: where the floor really isDeals

Hogwarts Legacy price history: where the floor really is

Our Hogwarts Legacy price history runs to 100 daily readings and a $3.99 median. Why the sub-dollar figure in search results is noise, and what to actually pay.

Oct 15, 2026
Enshrouded price after 1.0: what it costs nowPC

Enshrouded price after 1.0: what it costs now

Enshrouded hit 1.0 today, but the Enshrouded price rose on 8 September and the key resellers have not followed. What our nine tracked sellers show, and whether to buy now.

Oct 15, 2026
Starfield price history: the sub-$20 window, and who set itPC

Starfield price history: the sub-$20 window, and who set it

Our Starfield price history shows one reseller set the all-time low over five weeks in late summer 2026. What a good price looks like now, and why Game Pass comes first.

Oct 14, 2026
Boltgun 2 price: buy the sequel, or the cheap first game?PC

Boltgun 2 price: buy the sequel, or the cheap first game?

The Boltgun 2 price has no cheaper route on launch day — our record shows one listing, unmoved since September. The first game is the bargain, but a smaller one than it was.

Oct 14, 2026
Rust price: why the cheap keys vanished, and when to buyPC

Rust price: why the cheap keys vanished, and when to buy

The Rust price has two answers: an official one that barely moves, and a reseller one that sat in single digits for 95 days and then disappeared. Our record shows both.

Oct 13, 2026
Planet Zoo 2 price: which edition, and when it gets cheaperPC

Planet Zoo 2 price: which edition, and when it gets cheaper

Planet Zoo 2 is out today. The Planet Zoo 2 price splits two ways, the cheap pre-order keys stopped existing three weeks ago, and the original got dearer as the sequel landed.

Oct 13, 2026

Top games right now

All rankings →
  1. 1Counter-Strike 2Free
  2. 2Dota 2Free
  3. 3PUBG: BATTLEGROUNDSFree
  4. 4Grand Theft Auto V Legacy—
  5. 5Terraria$2.16
  6. 6Rust$25.84
  7. 7Team Fortress 2Free
  8. 8Black Myth: Wukong$36.50
  9. 9HELLDIVERS™ 2$25.07
  10. 10ELDEN RING$49.41
  11. 11Apex Legends™Free
  12. 12Left 4 Dead 2$9.99
  13. 13Stardew Valley$13.81
  14. 14Wallpaper Engine$3.99
  15. 15Euro Truck Simulator 2$9.89
  16. 16Dead by Daylight$6.84
  17. 17Red Dead Redemption 2$11.00
  18. 18Baldur's Gate 3$57.62
  19. 19Phasmophobia$17.30
  20. 20War ThunderFree
  21. 21Call of Duty®—
  22. 22ARK: Survival Evolved$13.48
  23. 23Among Us$2.99
  24. 24The Forest$19.72