Brawl Stars is a fun, action-packed team deathmatch game from the makers of Clash of Clans
The main game mode has a very simple mechanic in place in order to make the teams converge and fight one another — the middle of the map has a vault, which spawns purple gems periodically. Be the first team to collect and hold a total of 10 gems and you win the match.
Now, the holding part is where it gets interesting — if your character gets killed, you drop all your collected gems and the opponents can claim them for theirs. So, it's not a good idea to hog the vault and collect all the gems for your team — that way, you become a liability. It's also not a good idea to try and solo-fight the opposing team as you might just end up giving away the victory.
Now, it's a free-to-play title, which means in-game purchases and lootboxes are present as a monetization model. You will need in-game currency to buy and upgrade your characters. You can either grind for that or drop some real-world money to get a boost.
Things that are NOT allowed: