I'm pretty sure the answer is yes, but I just want to make sure. I was hoping on having 24 player games, but with saving quite a few stats and different things, i'm not sure if that'll limit me. Also, how do I save every 1 minute? I'm pretty sure I don't use a while wait(60) do loop then save the data, do I?
Technically, the less players you have in your game, the more datastore requests you can have per-player. But the data-saving is based on player count as well, so it shouldn't be that huge of an issue.
Generally, you shouldn't need to save data that often. Normally you can keep to saving data when players leave, and load data when players join.
First off, no. Next, to load and save your time just simply insert a value in the player and then add 1 to it via a loop. Just load it with PlayerAdded and save it when PlayerLeave.