Most idle games end with you watching numbers climb by yourself, forever. Lost Vessel spends its early game building deep solo progression - skills, a melee/ranged/void combat triangle, a forge with rare legendary procs, mastery tracks, prestige, and body-mod implants - and then pours all of it into a cooperative endgame: shared expeditions, a server-wide world boss, and faction construction projects that unlock new content for everyone.
Key features:
- Idle-to-co-op, not idle-to-lonely. Your solo progression feeds a genuine cooperative endgame instead of trailing off into an empty number-go-up loop.
- Free forever, cosmetic-only. The entire game is free, every system, no paywalls and no quality-of-life locked behind a wall. Optional Supporter Packs are purely cosmetic. There is no pay-to-win, ever.
- One save, everywhere. Play in a browser tab, continue on Steam or a Steam Deck. The same account and progress travel with you across every device.
- Start in seconds, no signup. Guest accounts let players drop straight in with no account wall; register later only if you want to.
- PvP that doesn't grief. Opt-in Faction War lets players compete for territory without losing their progress to punishing invasions.
- Real depth for the idle crowd. Multiple gathering and crafting skills, deterministic daily bounties, a legendary forge, prestige (Reawakening), implants, and hundreds of achievements, all built on a "benefit if you idle, come out ahead if you play active" design.
"Every idle game I loved eventually left me alone with a spreadsheet," said Simon Haberl, founder of Lazy Frog Games. "I wanted to find out if all that solo progression could pour into something you do with people instead. That's the whole reason Lost Vessel exists."
Availability
Lost Vessel launches July 6, 2026, free-to-play on Steam (Windows + Steam Deck) and browser.
Steam: store.steampowered.com/app/4652730/Lost_Vessel
Play now in browser: lost-vessel.com
Press kit & assets: lost-vessel.com/press (logo, key art, screenshots, factsheet - free for editorial use)
Press contact: Simon Haberl - simon@lazyfrog.games
Community: discord.gg/ghtae8FKQv
About Lazy Frog Games
Lazy Frog Games is a one-person independent studio founded by Simon Haberl. Lost Vessel is its first title, built in the open with its player community and released free-to-play with a strict no-pay-to-win commitment. More at lazyfrog.games.