First hour is quite broad in my opinion because not all gameplay durations are 1+ hour, but I got what you mean. 😅 I, for one, stay playing for 2 things: good story and progression. I could play for HOURS if your game has a good indulging unique story. But of course it depends on the type of game you're playing. For example: a simple game like Arrows makes me play it more than 1 hour because it has simple mechanic and I just want to get on top of that leaderboard. 😂 These reasons are not the same when I play visual novels where my focus is solely on the curiosity of what will happen next 😌