Gonna go with the wildcard here and suggest Walkscape. It’s still in beta, so access requires a one-time patron sub ($4.50, then cancel) or a free written application through their portal (may take like a week to approve)

It’s a classic runescape-style RPG where all actions cost “steps” walking. It’s designed to keep screen time to a minimum and walking time to a maximum.

Character management is generally pretty passive and 1-handed. Definitely much more casual by nature, but encourages much more active participation.