
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
Fun idle game. Cool mechanics, looks nice, dev very active. Played for hundreds of hours in browser which works as good as via steam. Cool if you dont want to download anything. Would recommend to check it out.
Lost Vessel "Idle sci-fi RPG where combat actually matters" and for sure it does. I do like the game and it is still fairly new and growing. I don't know much about the dev however seems cool enough being in chat and updating and talking with the game players. I do suggest at least giving the game a try. It's not for everyone of course. I tend to run 24/7 unless updates, power loss or internet issues causes me to be offline. There are reviews I've seen with less than an hour and some less than a day. I will never trust or believe anyone can write a decent review of something with next to 0 time in playing the game. Do I have some cons about the game? Yes I do. Biggest issue for me is the codex. Yes this game has 1 however I find it next to useless. First I will start how it works. You open the codex and you have to scroll to the right to see things. No issues in doing that however you click on something and that scroll bar jumps all the way back to the left. Bad design I guess but could be fixed by the dev at any time as updates and such keeps rolling out. The worse part of the codex is like the weapons and armor. Great it gives some details about what you are looking at but it lacks so much. Lets use something simple the fracture blade weapon. It will link you to the page if you click to where to forge it however the codex gives no info about how to make it or how much of the stuff needed to make it. I have to make my own excel sheet to track what is needed and how much is needed to make it and then if you wish to upgrade it takes 4 and then upgrade it again takes another 4 all the while having to keep track myself on what and how much is needed to do so. So why even have a codex if you have to make your own spreadsheets to keep track of these things? Yes I still suggest the game and like the game. There is always room for improvement in just about everything and I know that. PVP is raiders by the way it looks. I joined only to see what it looked like. You can leave and must wait 7 days before you can do anything with it again. I am fine with that as I think this section is more of end game play. I was not and still currently not ready for all that as of yet. Time I waited to post review was over 160 hours which running 24/7 is only just over a week. I am still very new in the game and still low level as it goes but still growing. The store page says idle however do be careful in doing so. Some actions is free to do however as you keep moving on with upgrading and doing things the actions cost. If you pick to make lets say iron plate you will need iron ore and running out while you are away or sleeping and such you do nothing. Fighting your gear has durability and your own HP as well. Don't let your gear or hp die is what I am saying lol. You may like this game and you may hate this game. It all depends on you and your game style. I do suggest giving it over 24 hours at least to know if not even a week. There is still idle things to do so yeah it can get kinda boring after a bit but idle games aren't meant to be beaten or make top number 1 in a day with doing next to nothing. Also seen some say you get a robot called I.D.L.E. which takes a fuel which would be fine except you either have to get from crates or looks like to join raiders to get 1 thing needed to make it yourself. This makes the robot end game style and mostly useless for a good while.
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
бредятина
Only played two hours, but it feels like a mobile game. It lacks the consistent dopamine that I need for PC idle/incremental games. Nothing particularly wrong with it, it's just on the wrong platform. Might be viable if you're looking for something to have on a third monitor while playing another game and watching a show, I guess?
(Review in french because it's my native language, and maybe it will be usefull for those who only speak french...but google translate it if you want ;-) ) Après 32 jours et quelques centaines d'heures, un petite évaluation de cet idle game spatial. Le genre n'est pas nouveau, mais c'est ma 1ère expérience dans ce type de jeux. Au lancement, un peu dérouté par la présentation, le guide est minimaliste et on est quand même un peu perdu (enfin, moi j'étais perdu, n'étant pas habitué à cette catégorie de jeu). Je ne pensais pas y jouer longtemps, mais finalement, 32 jours après, je suis là et je me suis connecté chaque jour. Donc, on mine, on fabrique, on récupère du matériel, on fabrique des armures et des armes, on se bat. Les points forts : - Plein de choses à découvrir et plein de choses à développer et fabriquer, après 32 jours, je suis loin d'avoir fait le tour. - Des zones de combats de plus en plus difficiles, avec du loot récupéré (je suis "tranquille" dans les 4 premières zones, les 3 suivantes existantes pour le moment sont plus difficiles et très difficiles pour la dernière)...le challenge est là. - On a 6 compétences, on peut en utiliser une à la fois, et combattre en même temps. - Le jeu est en constante évolution, le seul et unique développeur ajoute régulièrement du contenu, et fait des patchs correctifs quand c'est nécessaire. - Les actions d'attaque et de la compétence sélectionnée tourne en afk pendant 8h. - On peut y jouer via steam ou via un browser internet (en se connectant via son compte steam) - Au départ un jeu solo, mais avec une partie pvp optionnelle (aucune pénalité ou perte de quoi que ce soit, c'est vraiment une possibilité offerte), et puis une partie coop après avoir débloqué cette partie du jeu - La communauté est vraiment sympa, et d'une grande aide pour les débutants (et le développeur est présent chaque jour, à l'écoute des remarques des joueurs). - Un récent sondage sur la suite de contenu à apporter laisse présager des nouvelles fonctionnalités bien sympa. Le point négatif : - Quand j'ai commencé, le 1er jour du lancement sur Steam, je n'ai pas eu facile de comprendre quoi faire. Mais depuis, des joueurs ont publiés des aides et des explications pour que les nouveaux joueurs s'y retrouvent. Du coup, ce "problème" est plus ou moins réglé. Pour conclure sur le point le plus important, ce jeu est un free to play. L'essayer ne coûte rien, si on n'aime pas, on aura juste "sacrifié" un peu de son temps, et sinon, ce sera une belle découverte dans votre bibliothèque. Et pour soutenir le développeur, pas d'achat pay to win, juste des packs cosmétiques qui commencent à quelques euros. Vous aurez compris que pour le moment, ce jeu m'a conquis. Ceci est évidement mon avis, je peux comprendre qu'il ne plaise pas à tout le monde, mais comme l'essai est gratuit, à vous de vous faire votre opinion ;-)
nice game
Decent enough idler, single developer is active and adding more stuff regularly.
I can't stand games that have crafting systems where items needs tons of pre-requisite materials. I can understand having a few items but the amount this game needs is ridiculous. I literally spent over a week getting enough materials just to do 1 research task. Signing in for 5 minutes to reset the offline progression timer and then closing the game until I need to reset the timer again. That's not playing a game. It almost feels like a job.
After purchasing hundreds of games off steam, 99% of them i get refunds for as they dont interesst me enough. This game has got me hooked.
Exactly what I was looking for in an Idle style 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 | |
| $79.9K | 324 | 84% | $9.99 | |
| $63.3K | 98 | 73% | $14.99 | |
| $690 | 10 | 60% | $2.99 |