1

Live simulation

What I mean with this is that when you play a game you get the result right away, it would feel better if you first see the game then get the results. Because right now I could spam sandbox games and just never care about watching replays.
1
You could just spam the sandbox but in order to play smart you still would have to watch replays to understand where your players are making mistakes and perhaps based on that you can modify the strategies. Then again atm there aren't that many strategy options that I understand but later on there will be much more options so that will increase the importance of watching replays.