Your crew left. The mission is over. You’ve got a pressure suit, whatever you can pull from the ground, and a planet that is actively trying to kill you. Somewhere under the Martian regolith are the raw materials for a rocket — and building it is the only way you’re ever leaving.
That’s the premise of Sol One, a first-person open-world survival crafting game from solo developer yeetgench. It launches in Steam Early Access on 30 July 2026, and it arrives with unusually direct developer communication about exactly what’s finished and what isn’t — which, in the current landscape of early access survival games, is worth noticing.
Survive, Mine, Build, Escape
The core survival loop is grounded and methodical. You’re managing oxygen, power, and food simultaneously — life support isn’t an afterthought, it’s the constant frame around everything else you do. Resources to extract include iron, copper, silica, ice, and uranium, each feeding into three crafting tiers that take you from raw ore up to finished precision parts.
Base building is pressurised — everything exists in a breathable environment you construct and defend. Farming is part of the mid-game. Vehicles are available for surface exploration, and you can dispatch an autonomous rover to scout and haul while you manage the base. Points of interest are scattered across the surface: crashed ships, old mission sites, reminders that others came before and didn’t make it out either.
The Early Access version doesn’t yet include the rocket build or launch — the actual ending of the game. That’s intentional and disclosed upfront. yeetgench describes the current build as “a playable, stable survival game with its main systems working” and says the full version “fills in the rest: deeper and refined survival systems, more of the planet to explore, more vehicles and buildings, new resources and tech tree nodes, and the full rocket build and launch.” The developer is planning 6 to 12 months of early access, with the price expected to rise as the game grows.
A Mars That Behaves Like Mars
The differentiator yeetgench keeps returning to is scientific grounding. “Sol One is made for people who like grounded, science-driven survival where problem-solving is the point,” the developer says. “The sky behaves like the real thing — rusty daylight, cold blue sunset, a gorgeous Milky Way after dark. Dust storms brew on the horizon and roll in over the ridge, your solar panels drop off, visibility closes in, and the comfortable margins you were working with suddenly disappear until it passes.”
That last point matters for gameplay. Dust storms aren’t a visual effect — they change the strategic situation. Power from solar goes down. You need stored reserves or backup generation. You plan around the weather rather than tolerating it.
The procedural Mars map is full-scale, with a proper day/night cycle. Early preview footage has been generally positive about the atmosphere and the sense of scale. One YouTuber playing the Steam Next Fest demo summarised it neatly: the grounded science approach “helps Sol One stand out from a lot of other space survival games.”
Early Access, Honestly Described
One of the more notable things about Sol One’s Steam page is how candid yeetgench is about the current state. “It’s not finished — some systems are still shallow, and the end of the game, getting off Mars, isn’t in yet,” the developer writes plainly. That kind of honesty isn’t universal in early access launches. A lot of survival games arrive with vague promises; Sol One arrives with a clear list of what works and what’s still to come.
“Sol One is a big project for one person, and I’d rather build the rest of it with players than disappear for a year and hope I guessed right.”
Working solo means community feedback carries real weight. yeetgench says player input will directly shape what gets built next — which systems get deepened, which get rebuilt, where the planet expands. For players who enjoy watching an indie project develop in real time, the early access window here looks like a genuine development partnership rather than a monetised beta.
Sol One launches on Steam on 30 July 2026. The price is set to increase after early access ends.
