I recommend that you try Battle for the Galaxy
, a strategy game in some respects similar to the SWC gaming system. For example, you can place troops wherever you want on the battlefield
. There are ground troops, robots, vehicles, and combat aero ships. Leveling up buildings takes time as in the SWC (hours, days, weeks).
There are leagues and events that award 300 crystals and are not complicated to perform. There are heroes too, there are only 3 but each one is very different from the other. You can team up or be part of one and fight squad wars. The teams are squads of 50 players.