What is Brawlhalla:

Brawlhalla is an epic platform fighter for up to 8 players online or locally. And it's free! Join casual free-for-alls, queue for ranked matches, or make a custom room with your friends. Millions of players. Frequent updates.

These slugfests are salted with powerful weapons and gadgets. Fighters scramble to grab swords, axes, hammers, blasters, rocket lances and more! Every weapon changes your play style and your options.

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Minimum Specs:

OS: Windows Vista+
Memory: 1 GB RAM+
Network: Broadband Internet connection
Storage: 350 MB available space

How Can I Download:

You can download and play it via Steam. Before you start to download you need to install Steam first. 
Here's the link: https://store.steampowered.com/app/291550/Brawlhalla/, Don't worry this is free to play, so, you don't need to pay anything for it.