The next game to be made freely available through the Epic Games Store is Axiom Verge, an excellent Metroidvania throwback game which is a whole lot more Metroid than it is Castlevania.
Axiom Verge earned rave reviews when it launched back in 2015, and deservedly so. It’s a surrealist take on exploring an alien world, subverting the usual Metroid expectations with a glitch gun for finding secrets. It's also a game with some jaw-dropping pixel art and sound design, all put together by solo developer Tom Happ.
Axiom Verge will be free to download on the Epic Games Store from February 7th through to February 21st. Up until then, the Jackbox Party Pack is the current free game on the Epic store until February 7th. All you need to do is log in to the store with an Epic account and add the games to your library.