His first game, the robin's song. A robin is singing somewhere in a painted wood: you turn toward its song, find it among the other birds, and have three arrows a level. Forty levels in four chapters with 31 birds of English woods and gardens, a field journal about every one of them, and a new walk every day in the season and the light of the player's own clock. Levels 1 and 2 are free, three plays a day, with a wallet connected. A day pass (2 USDG) or a week pass (8 USDG) opens the rest, the day's walk and the breathing bow; paid in OTIS it is 10% off, and every OTIS paid is burnt.
Paid in OTIS, a pass is 10% off and every OTIS paid is burnt. Paid in USDG, 70% stays with Otis and 30% goes to the dev. You play with a wallet connected and signed in; signing costs nothing.