What's the best way to save up gems in freemium games?

Is there a specific freemium game you're playing, or are you asking in general?

What works best is being selective about where you spend your gems. Most of these games tempt you to blow them on cosmetics or to speed up short waits, but that's what drains your digital wallet. Instead, save them for special events or for stuff that actually changes your gameplay experience - important character upgrades, battle passes if they're worth it, that kind of thing. A lot of times if you wait a couple of weeks, there'll be a better deal or an event that gives you free gems.

Another tactic is completing all your daily missions and challenges without exception, even if it seems tedious. Freemium games hand out plenty of gems if you play them regularly, so that already covers a good chunk without spending a cent. And if you really want to be disciplined, set yourself a small monthly budget (like two or three euros) just for when you see you really need something, but honestly most people I know who play these games realize that spending zero takes longer but it's totally doable.

The trick is remembering that developers design these games to make you feel like you need to spend, so question yourself every time before you touch those gems. If you can wait, wait.