
Idle sci-fi RPG where combat actually matters. Crash-landed on an alien world, you rebuild through five skills, melee/ranged/void-magic combat, and a server-wide world boss. Progress keeps going while you're AFK. Solo, co-op, or faction raids. Free to play. No pay-to-win.
Revenue comes from in-game items and microtransactions, which our price-based model doesn't estimate. The player count below is how many people own it, not what they spent.
About
You crash-landed on an alien world. The ship is scrap, the planet is hostile, and progress doesn't stop when you step away. Lost Vessel is a sci-fi idle RPG with real combat, deep crafting, and a slow climb back toward the stars - playable in thirty-second bursts or five-hour grinds. Free to play, no pay-to-win, ever.
Five skills pull you back from zero: salvage the wreckage, mine the planet, harvest alien flora, fabricate weapons and armor, analyze every sample for the next tier of everything. Each skill compounds the others - endgame materials require components from all five.
A melee / ranged / void-magic triangle where every enemy has a weakness. Crits, armor pierce, dodges, reflects, instant kills on legendary gear. Weapons degrade with use and break permanently if you let them. Fight through zones with escalating difficulty all the way to a dimensional rift at the endgame.
Equipment starts common and works up through rare, epic, and legendary at the Forge. Legendaries aren't just bigger numbers - 5% instant-kill, 25% skill-speed auras, damage reflection. Loadouts let you switch a combat kit, a gathering kit, and a backup with one tap. Durability matters. Repair matters. Choices matter.
Assemble I.D.L.E. from parts and you get a second skill queue running in parallel. He's sarcastic, he complains constantly, and he runs on Voidshine - a cross-skill endgame fuel that needs materials from combat, biology, and fabrication. Keep him fed and he grinds while you sleep.
The Nexus Drift is the co-op hub: 2-4 player expeditions, a server-wide world boss, and specialist jobs that pay weekly tokens. Raiders is the PvP side: pick a faction, raid other players, defend your colony, fight for territory. Both are completely optional - solo players lose nothing.
Offline progression is genuinely idle - skills work while the browser or Steam client is closed. A 17-track mastery system grants permanent passive bonuses every time you hit a milestone. Ship augments are a 110-level talent tree for fine-tuning your build. No energy timers, no stamina bars, no premium currency. Just progression.
Optional cosmetic supporter packs let you back the game and show off - exclusive titles, name effects, and profile flair. Cosmetic only, never power, never an advantage.
COMING TO STEAM.
A free demo dropped in May 2026 so you can try it before the full launch. Wishlist to get the exact date the moment it goes live.

Genres
Stats
Languages: English**languages with full audio support
Engagement
Reviews
Themes across 77 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
A fun idle game! I'd played quite a few of this style and this one is a very solid game. I find it to be more intuitive than many that are out there - even though there is a lot, it is introduced fairly slowly and it all so far has been intuitive so I've never felt lost. Some upgrades for convenience are locked behind a small time gate but I don't really have an issue with that (such as auto - healing). The mission system is pretty good at leading you through what you need to be aiming for. I admittedly have put it on pause and am just doing my own thing and it's still fun which says a lot about how well the game is built. The only real complaint I have so far is that tools disappear when durability hits 0 instead of letting me repair them. Pretty minor overall, and maybe auto-repair comes later in the game anyway. For free - you can't really go wrong, absolutely worth giving a shot. I'll update later if my thoughts change after I pour more time into it.
Durability is one of the worst design decisions of games like these. Yes, your armor, weapons and tools will degrade with every use until they are destroyed and you need to spend a lot of time finding consumables just to stop it. It makes combat feel kinda bad. You could go to sleep, only to wake up and find your stuff gone. Auto repair and auto healing are Tier 3 research so it will take some hours to get those set up. Other than gear durability the game is fine but I wish there were more than 5 skills + 1 with combat. Maybe as time goes on we will get more skills. Skill max level is also 999 and you can reset them for xp boosts which I think is nice.
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This and every other Pro feature is free until October 20, 2026. A free account is all it takes.
Hours played at review time, across 77 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
You could say 150 hours is pretty impressive time-wise, for an idle game. To be honest, the vast majority of that was leaving it running in the background throughout the day. I've barely interacted with it overall. Probably more of an idle game than most, which is a good thing. At least it's not false advertising, like so many others. Now the novelty has worn off and I don't feel like carrying on. But here's the twist! I can recommend it. If you're suited to sticking around longer for waiting games, then there is more to get out of it. The UI design is nice and easy to use, the game mechanics aren't complicated, there is a decent in-game guide (which could do with expanding a little, but you're not left completely in the dark). Plenty of things to do, plenty of skills, upgrades, items to collect and so on. There is PvP, if you're into that sort of thing (I'm not) and a global chat (again, I'm not). Fill your boots.
Chill idle game without pay to progress nonsense.
Absolutely pick up this game its a nice fun little indie idler and the developer hangs out in chat and is super cool and uhh yeah its free forever no pay to win
Been a while since I found an idle game that I enjoyed for longer than 2hours. It's fun, feels rewarding and has immersion. Definitely try it if you are looking for an idle game.
нет
I like other idlers much more, I would suggest those even though they are not free like this.
Have played the game for hundreds of hours in web already. Can only recommend, it's a great idle game. Easy to figure out how it works and no p2w. Dev is very active and pushes patches and updates quite regulary.
Better than average idle game!
Active players
Estimated daily and monthly active players (DAU/MAU) modeled from peak concurrency.
Players by region
Where this game's players are, estimated from review languages.
Players also reviewed
The games this title's players most often review too — audience affinity.
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| — | 0 | — | — | |
| — | 0 | — | — | |
| $594.5K | 849 | 85% | $18.99 | |
| $79.8K | 308 | 83% | $9.99 | |
| $63.3K | 98 | 73% | $14.99 | |
| $690 | 10 | 60% | $2.99 |