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. No pay-to-win.

<video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4652730/extras/ece6a405d88a1987765c035303ff66be.poster.avif?t=1778977099" width=1170 height=480 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4652730/extras/ece6a405d88a1987765c035303ff66be.webm?t=1778977099" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4652730/extras/ece6a405d88a1987765c035303ff66be.mp4?t=1778977099" type="video/mp4"></video>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. No pay-to-win, ever.<video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4652730/extras/161ff07e10dbe157443859184aa716e3.poster.avif?t=1778977099" width=1170 height=484 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4652730/extras/161ff07e10dbe157443859184aa716e3.webm?t=1778977099" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4652730/extras/161ff07e10dbe157443859184aa716e3.mp4?t=1778977099" type="video/mp4"></video>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.<h2 class="bb_tag" ><video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4652730/extras/d7c5ffa5a36bebb6f2baba87f78cdd09.poster.avif?t=1778977099" width=1170 height=484 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4652730/extras/d7c5ffa5a36bebb6f2baba87f78cdd09.webm?t=1778977099" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4652730/extras/d7c5ffa5a36bebb6f2baba87f78cdd09.mp4?t=1778977099" type="video/mp4"></video></h2>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.<h2 class="bb_tag" ><video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4652730/extras/44555e9414fc1601cf9fa941d12b16a3.poster.avif?t=1778977099" width=1170 height=480 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4652730/extras/44555e9414fc1601cf9fa941d12b16a3.webm?t=1778977099" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4652730/extras/44555e9414fc1601cf9fa941d12b16a3.mp4?t=1778977099" type="video/mp4"></video></h2>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.<h2 class="bb_tag" ><video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4652730/extras/69031650b83d984eb3dc6cb7a4bbac89.poster.avif?t=1778977099" width=1170 height=480 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4652730/extras/69031650b83d984eb3dc6cb7a4bbac89.webm?t=1778977099" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4652730/extras/69031650b83d984eb3dc6cb7a4bbac89.mp4?t=1778977099" type="video/mp4"></video></h2>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.<h2 class="bb_tag" ><video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4652730/extras/9a9f290bd03d377d39bda233488f45c1.poster.avif?t=1778977099" width=1170 height=480 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4652730/extras/9a9f290bd03d377d39bda233488f45c1.webm?t=1778977099" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4652730/extras/9a9f290bd03d377d39bda233488f45c1.mp4?t=1778977099" type="video/mp4"></video></h2>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.<h2 class="bb_tag" ><video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4652730/extras/b683c0241ea83a5c4351c2e3b0c0501a.poster.avif?t=1778977099" width=1170 height=480 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4652730/extras/b683c0241ea83a5c4351c2e3b0c0501a.webm?t=1778977099" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4652730/extras/b683c0241ea83a5c4351c2e3b0c0501a.mp4?t=1778977099" type="video/mp4"></video></h2>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. COMING TO STEAM.A free demo drops in May 2026 so you can try it before the full launch. Wishlist to get the exact date the moment it goes live.<img class="bb_img" src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/4652730/extras/6ce95ee1103d84e188c6413a373730f3.avif?t=1778977099" width=1491 height=4662 />

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Lost Vessel Achievements