Space Engineers is an open world sandbox game about designing, building and testing your own space machines. Construct ships, stations and planetary bases in a fully destructible environment, then explore planets and space, mine resources, survive hazards and engage in combat alone or with friends in Creative or Survival modes.Play solo or in multiplayer, from small co-op outposts to huge community servers. Start with a simple lander, grow into a mining and industrial empire, or focus on warships and planetary fortresses – the game gives you the tools and physics, you decide what to build.Space Engineers uses a volumetric physics engine: every block and voxel has mass, inertia and damage. Ships break apart, stations crumble and terrain can be drilled, carved and reshaped, so your engineering choices really matter.Space Engineers is grounded in real engineering and hard science fiction, driven by realism and plausible near-future technology. Think modern space programs extrapolated into the future: realistic ships, stations, tools and systems where everything is built and simulated block by block. It’s about the machinery you build, not about magic or scripted set-pieces. Why play Space Engineers (SE1) now?10+ years of active development with many free updates every year – and still ongoingHuge Steam Workshop with thousands of ships, bases, mods, scripts and scenariosStable, feature-rich sandbox ideal for long-term saves and big community serversAll DLC is cosmetic-only – everyone plays with the same gameplayActive player base, dedicated servers and modding community Core featuresBuild anythingDesign and pilot small and large ships, asteroid stations and planetary basesOver 200 functional blocks: thrusters, rotors, pistons, turrets, conveyors, production blocks and moreFirst- and third-person building, symmetry tools and blueprints for fast large-scale constructionManual building in Survival: weld to assemble blocks, grind to disassemble and reuse components Fully destructible worldVoxel planets, moons and asteroids with atmospheres, gravity and climate zonesDrill, cut and blast terrain; carve tunnels, craters and underground basesShips and structures take block-by-block damage and can break into piecesDeformable and destructible objects with real mass, storage capacity and integrity Play your wayCreative – unlimited resources, instant building, no deathSurvival – manual assembly, resource and power management, death/respawnSingleplayer or multiplayer (co-op or competitive) with privacy settings and dedicated serversScenarios, Workshop worlds and custom worlds so you can start in exactly the kind of universe you wantEndless replayabilitySuper-large worlds with procedural asteroids and exploration encountersExploration systems that add ships and stations to discover, capture and conquerVisual Script Editor to create your own missions, game modes and campaignsCargo ships, factions and AI-controlled threats to interact with – or defend against Modding & scriptingDeep Steam Workshop integration for worlds, blueprints, mods and scriptsModding API in C# to change game behaviour and add new systemsProgrammable block for in-game automation and custom logicSupport for custom textures, models and many other mod typesSystems & survivalElectricity, power grids and generators powering your entire base or shipOxygen and hydrogen for life support and thrustersWeapons and combat blocks for ship-to-ship battles and base defenseGPS, remote control, voxel hands, controller support and more quality-of-life toolsExtensive language support with official and community localizations