Project Lighthouse: a game from the Poly Haven community
Poly Haven, a public library of free game assets, has announced a new open project–a game designed to showcase the potential of Poly Haven assets in real-world production, as well as to improve their quality and usability.
Project Lighthouse is a first-person sci-fi puzzle game that places you on a remote rocky island with a simple mission: restore a vital lighthouse as quickly as possible. However, due to a mysterious technology, the island becomes a trap. The player must explore the area and solve puzzles to uncover the fate of the vanished inhabitants, unravel the mysteries of a catastrophic experiment, and escape this eternal philosophical limbo.

From the developers:
"We invite 3D artists of all skill levels to collaborate and work alongside us to create a library of themed props that will be integrated directly into the game. This is your chance to be a part of a greater project and leave your mark - help us shape the environment of Project Lighthouse!"
Rewards and sponsorships are available for participants to encourage high-quality contributions, but the essence of the initiative is to develop a collection of free resources that anyone can use. Assets created by project participants will be published on the Poly Haven website under a CC0 license.
The game is scheduled for release in Q4 2026. The deadline for collaboration is May 1st.
Details on the project page: https://polyhaven.com/project/lighthouse.