Right now the demo isn't a sliver of the game - it's the entire thing. No content gates, every system unlocked, free, all the way until launch. After launch those systems lock behind the purchase, so this is the window to play the whole game for nothing.
Lost Vessel is a sci-fi survivor idle-RPG: salvage and craft your way up through deep skill trees and a melee/ranged/void combat system, then push into the co-op Nexus - a server-wide world boss, group expeditions, and a shared frontier.
What sets it apart:
No signup wall - one click and you're in, as a guest, on Steam or in your browser.
Your save travels with you - the same character across browser and the Steam client.
Built in the open - one developer, shaped week by week with its community.
Steam-exclusive Fest rewards: time on the Steam client this week earns permanent cosmetics - a title at 2 hours, a profile background at 8, and a name glow at 20. Only during Next Fest, only on Steam.
If you like it, the best thing you can do is wishlist it - that is how Lost Vessel reaches more players and sets up the launch.
See you out there.