Ranked 121–180 of 195 sandbox & building games with co-op or multiplayer on Steam. Back to the most-played sandbox & building games.
| Game | Modes | Type | Rating | Playing now | Price |
|---|---|---|---|---|---|
| Galactic Junk League | PvP | Space sandbox | 69% | — | |
| Terror of Hemasaurus | Co-op, PvP | Physics sandbox | 92% | 4 | $5.99 |
| Occupy White Walls | Co-op, Single-player too | Building & crafting | 93% | 2 | |
| Mod and Play | PvP | Building & crafting | 43% | — | |
| Deepworld | Online multiplayer | Building & crafting | 61% | 4 | Free |
| The Orville - Interactive Fan Experience | PvP, Single-player too | Space sandbox | 90% | 2 | Free |
| PixelJunk™ Nom Nom Galaxy | Co-op, Local / split-screen | Building & crafting | 77% | 1 | $9.99 |
| The Repopulation | Online multiplayer | Building & crafting | 51% | — | |
| Voxel Turf | Co-op, PvP | Building & crafting | 88% | 2 | $7.99 |
| Secret Agent Wizard Boy and the International Crime Syndicate | Co-op, Single-player too | Building & crafting | 97% | 2 | $9.99 |
| Wattam | Co-op, Local / split-screen | Building & crafting | 85% | 2 | $19.99 |
| Kingdom Wars 2: Definitive Edition | Co-op, PvP | Building & crafting | 67% | 2 | $9.99 |
| JUNKPUNK | Co-op, Single-player too | Factory & automation | 70% | 1 | $15.99 |
| Airmen | Co-op, PvP | Building & crafting | 78% | 2 | $14.99 |
| Kingdom of Atham: Crown of the Champions | Co-op, PvP | Building & crafting | 77% | 2 | Free |
| Playcraft | Co-op, PvP | Building & crafting | 79% | — | $14.99 |
| Gish | Co-op, PvP | Physics sandbox | 58% | 1 | $9.99 |
| Darkfall Unholy Wars | Online multiplayer | Building & crafting | 53% | — | |
| Wild Indigo Ranch | Co-op, Single-player too | Building & crafting | 71% | 1 | $19.99 |
| Simple Fish Adventure | Co-op, Single-player too | Physics sandbox | 88% | 1 | $3.99 |
| KEO | Co-op, PvP | Physics sandbox | 51% | — | $9.99 |
| The Wall | PvP | Building & crafting | 72% | 1 | Free |
| Vectorio | Co-op, Single-player too | Factory & automation | 82% | 1 | $9.99 |
| Project 5: Sightseer | Co-op, PvP | Building & crafting | 71% | — | Free |
| CubeGun | Co-op, Single-player too | Building & crafting | 60% | 1 | Free |
| Logic World | Co-op, Single-player too | Building & crafting | 94% | 1 | $25.00 |
| MisBits | PvP | Building & crafting | 84% | — | |
| CSC | Space MMO | Online multiplayer | Space sandbox | 62% | — | |
| Lords of Kingdoms | Co-op, PvP | Building & crafting | 45% | 2 | Free |
| Dwarf Tower | Online multiplayer, Single-player too | Building & crafting | 71% | 1 | $0.99 |
| Morkredd | Co-op, Local / split-screen | Physics sandbox | 80% | — | $19.99 |
| Ethereal Estate | Co-op, Local / split-screen | Physics sandbox | 87% | 1 | Free |
| UnPlugged | Co-op, Local / split-screen | Physics sandbox | 94% | 2 | $2.39 |
| Technicity | Co-op, Single-player too | Building & crafting | 80% | 1 | $1.79 |
| S.O.T.A 2 | Co-op, PvP | Building & crafting | 54% | — | |
| BLASTRONAUT | Co-op, Single-player too | Building & crafting | 75% | 1 | $18.99 |
| KallaX | Co-op | Physics sandbox | 86% | — | $9.99 |
| Trapper's Delight | PvP, Local / split-screen | Building & crafting | 94% | — | $7.99 |
| Skullborn | Co-op | Building & crafting | 78% | 1 | $8.99 |
| Sandbox Anything | Co-op, PvP | Building & crafting | 74% | 1 | Free |
| CodeSpells | PvP, Local / split-screen | Building & crafting | 39% | — | $4.99 |
| Code Rivals: Robot Programming Battle | Co-op, PvP | Factory & automation | 84% | 1 | $5.99 |
| Modbox | Co-op, PvP | Physics sandbox | 86% | — | $14.99 |
| Grudge | Co-op, PvP | Building & crafting | 75% | 1 | Free |
| MagiCats Builder (Crazy Dreamz) | Co-op, PvP | Building & crafting | 61% | — | |
| Treadnauts | PvP, Local / split-screen | Physics sandbox | 88% | — | $14.99 |
| Uncrewed | Co-op, PvP | Building & crafting | 68% | — | $11.99 |
| Broll | PvP, Local / split-screen | Physics sandbox | 74% | — | Free |
| Cantata | Co-op, PvP | Building & crafting | 67% | — | $12.99 |
| Starground | Co-op, Single-player too | Factory & automation | 84% | — | $13.99 |
| Perfect Universe - Play with Gravity | Online multiplayer, Local / split-screen | Physics sandbox | 72% | — | $9.99 |
| Tiny Tanks | PvP, Local / split-screen | Physics sandbox | 66% | — | $9.99 |
| SUPER RECOILFIGHT | PvP, Local / split-screen | Physics sandbox | 78% | — | Free |
| Project Lounge | Online multiplayer, Single-player too | Building & crafting | 67% | — | $4.99 |
| The Corporate Machine | PvP, Single-player too | Building & crafting | 61% | — | $9.99 |
| Get Packed: Fully Loaded | Co-op, PvP | Physics sandbox | 64% | — | $19.99 |
| Ultimate Godspeed | PvP, Local / split-screen | Physics sandbox | 94% | — | $12.99 |
| Blip (Open Alpha) | Co-op, PvP | Building & crafting | 80% | — | Free |
| Collider | Online multiplayer, Local / split-screen | Physics sandbox | 71% | — | $2.99 |
| holedown | Co-op, Local / split-screen | Physics sandbox | 86% | — | $9.99 |
Ready Up is a free tool: enter two Steam usernames and it lists the multiplayer games you both own, runs a bracket to pick one, and suggests new co-op games that fit how you both play. Ratings, tags and player counts from Steam and SteamSpy; page updated 2026-09-23. Powered by Steam — not affiliated with or endorsed by Valve Corporation or Microsoft. Ready Up is a Somebody Decide program. How the data works · Legal & privacy · All types · Game Pass