
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
Не работает. В общем, это, по сути, браузерная ММО, которая заблокирована не то для РФ, не то в РФ.
So far i'm enjoying the game. There is a lot of little things to do to keep you moving forward. A few small things need tweaking in my opinion but nothing game breaking. This game is also actively being worked on so that is always a plus, the dev (or someone connected to them) is in the global chat to talk and that's cool. As of now i would say good game slowly getting better as i play it.
Was schönes für nebenbei und ganz ohne P2W.
Media

Related
Related
Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
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
nice
☀️
Great game for a people who loves idle grind games I LOVE IT!
Ignore the play time here, I'm reviewing the game after 38 days (and hundreds of hours played in the web client - nickname "Aalia" if anyone is interested). I played countless idle games but only very few satisfied me in the long term. Lost Vessel is definitely one of the ones with slower progression, but significant depth and great atmosphere. Everything fits together quite well. Good thing is also that PvP in this game is fully optional and doesn't provide any boost for the core game, only achievements. The game is in active development so there are frequent updates. Various fixes, but also new content which is nice. This all for free, there are no paid advantages, only cosmetics like colored names, titles, profile backgrounds, etc. I'm really curious what updates come next. The game has a cooperative hub called Nexus and players are working together to unlock new features for everyone and that's cool. So if you are going to try, keep in mind that you will unlock a lot of features through RESEARCH and that the game is much deeper than it might look in the first minutes. And if you want any advice, here you go: 1) try to get combat running asap; first few hours might be tough because the durability loss is huge pain, but after few hours of combat you should discover the nano shield which makes you immune to the durability loss 2) if you're looking for guide that will introduce you to the game, join the official discord server, I published one there
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 | — | — | |
| $596.1K | 806 | 84% | $18.99 | |
| $79.9K | 325 | 84% | $9.99 | |
| $63.3K | 98 | 73% | $14.99 | |
| $690 | 10 | 60% | $2.99 |