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[Steam] Firewatch ($1.99 / 90% off)
(store.steampowered.com)
Rules
Credit Icon by Delapouite from Game-icons.net
Totally, dude. A hike that requires light bouldering or traversal becomes a game of ideal foot placement and clambering. If you bring a camera on a hike you end up internally rating your own pictures or hunting for opportunities. You can gamify a lot of things.
Playing Firewatch by choosing the dialogue responses that paint Henry as a certain kind of person is a game. Role-playing, if you will.