There are several free community-led projects on that explore the game's mechanics:
This is a popular web-based and downloadable project by that lets you explore the OMORI world with others for free.
If you decide to purchase the full version, here is what to expect: Surreal Psychological Horror RPG Length ~21.5 hours for main story; ~71.5 hours for 100% Storage 2 GB available space Themes
Before the full release, developer provided a free demo to give players a taste of the surreal world.
Storage: 2 GB available space. Additional Notes: 1280x720 display is required to play the game at 2x resolution.
: It is a web-based game (no download required), but Android and PC ports are also available for a more stable experience. 3. Fan Projects & Sandbox Modes