Sill

Sill is a one-room, wordless game. You walk. You pick something up. You set it on the sill. Across the courtyard, a far window answers. It never answers exactly.

Controls: tap or click to walk, tap the sill to interact. WASD or arrows plus E also work.

About 60 seconds. I won't tell you what it means. If you play it, tell me the one moment that landed, or where you stopped caring. Either is useful.