And we all know the pain of waiting for days or even weeks to finish upgrading our troops, defences and other buildings. Those who can’t afford to buy gems will have to struggle their way up building their base.
But at the same time Gems are not free, they need to be purchased from the in-game shop for real money. Everything, literally everything can be instantly upgraded with the help of gems. Without Gems, you can’t speed up anything in your base.