The phrase "to keep players happy" means to do things that make players satisfied, content, and pleased with their experience in a game or activity. Full definition
Sometimes it's about keeping players happy and keeping your squad large. (justarsenal.com)
I don't have faith he can pick wisely, as I believe he's just gonna focus on keeping players happy the best way he can. (justarsenal.com)
The game is built for it, and the joint exploration just feels like a building block to keep players happy until it's properly put into the game. (coin-drop.com)