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Sand:box
"Falling sand" style particle sandbox, now with circuits and stickmen!
In short, Steam reviewers most often praise “Creative sandbox freedom” (41 of 71 reviews) and “Long experimentation and discovery” (5). What reviewers agree on ↓
What players say
Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-29 · quoted reviews as of 2026-05-14.
What reviewers agree on
41 of the 71 reviews raise this.
“very simple sandbox game i used to play on my phone it has come a long way. they have added so much i highly recommend if you are a fan of sandbox games.”
“Burned a house made out of wood. Then proceeded to make a mental hospital and put acid on top of it. I was surprised.”
5 of the 71 reviews raise this.
“Played the free version (available on android) and thoroughly enjoyed the game so I bought it for a whole £1, it's great just for relaxing and letting ones imagination run wild in moments of boredom. If it doesn't…”
“actually quite a cool little game that you can simulate alot of stuff in, despite being very simple. you could make a war between t rexes, zombies, and "humans"”
“Only have 3 hours of playtime but i love this game its very simple and very complicated at the same time so you can just melt dinosaurs in acid or build nuclear power plants its up to you. I have so much to discover and…”
5 of the 71 reviews raise this.
“Played the free version (available on android) and thoroughly enjoyed the game so I bought it for a whole £1, it's great just for relaxing and letting ones imagination run wild in moments of boredom. If it doesn't…”
“Ngl PEAK, got the same game in my ohone and got premium on there. The best £1 I've ever spent.”
“It has digital logic, I LOVE games and sims with that. It's almost too good to be true the amazing things people create in this, like whaaa? Best money I spent all year so far, go get it!”
3 of the 71 reviews raise this · 2 of them still recommend the game.
“plain boring dont buy unless u have no other option”
“Please add tools which let you heat up or cool down things without fire sincen fire is inconsistent Also add keybind customization”
Counted across 71 English reviews, sampled to match this game's 93.9% positive rating · as of 2026-05-14
“This is actually a pretty fun sandbox game. The best part is you can learn real world computer logistics... YOU CAN LEARN REAL WORLD COMPUTER LOGISTICS???”
— a player, Steam review · 25 hrs played“I love this game. i had it on my phone and had pro and it was fun but then i seen it for pc so i got it and theres more stuff. cool game. 10/10”
— a player, Steam review · 53 hrs played“good but they need to add that smoke can expand different dirrections like in real life not only up”
— a player, Steam review · 13 hrs playedPlayer activity
Monthly average concurrent players. Live data self-collected from the Steam API · history through 2026-06 via SteamCharts.
Price tracking
US-region pricing (USD), sampled twice daily by our own tracker since 2026-07-25. Steam prices vary by region — always confirm your local price on Steam.
Regional prices at last sample, in local currency — Steam sets each region's price independently.
Cheapest → most expensive, converted to USD at ECB reference rates (2026-10-23). Relative comparison only.
Latest official news
Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.
Christmas Stickmen update!
We have improved stickmen a lot, I won't give you any spoilers. Also, for 2026 we will be making sand:box fully moddable. so we can all make everything we ever dreamed of! we have already started work
Stickmen Update
We're super excited to announce a massive new update that introduces a whole new game dynamic that completely changes how you play sand:box... playable characters! Now you can design levels that you c
Circuits & Steamworks Update
We're excited to announce our biggest update so far, in more than 5 years! Firstly, Steamworks support , so you can share your designs and gadgets with others. And we have added 30+ new materials that
Tools & Materials Update
We're happy to announce our first major update. New Tools: Select (Cut, Copy, Paste, Move) Pick (Pick Materials and View Temperature) Line (Draw Lines and Snap to Axes (shift)) New Materials: Improved
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From our knowledge graph — ranked by shared traits, not a black box. Each card says why it's here.
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Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-05-14.
| Genres | Casual, Indie, Simulation, Free To Play |
| Player tags | Sandbox · Pixel Graphics · Simulation · Relaxing · Physics · Electronic · Indie · Automation · Destruction · Casual · Education · Old School (SteamSpy community voting) |
| Features | Single-player · Multi-player · PvP · Shared/Split Screen PvP · Co-op · Shared/Split Screen Co-op · Shared/Split Screen · Steam Workshop |
| Languages | English, French, Italian, German, Spanish - Spain, Arabic, Bulgarian, Czech, Danish, Dutch, Finnish, Greek, Hungarian, Korean, Norwegian, Polish, Portuguese - Brazil, Portuguese - Portugal, Romanian, Russian, Simplified … |
| Official site | https://smellymoo.com |
Minimum system requirements (PC)
Minimum: OS *: Windows XP / Vista / 7 Processor: 2 GHz Memory: 1 GB RAM Graphics: 800x600 minimum resolution, OpenGL 2.0 Support Storage: 32 MB available space