The excellent looter shooter, Borderlands:The handsome collection is currently free (normally $27.99) on the Epic Games Store grab it here before June the 4th.
While you're there, the latest offering from the devolver games "Sludge Life" is also available free from the store for the next year.
Epic are continuing to provide a free game each week to anyone who has an account there. The only stipulation is that now you require to have two-factor authentication active on your account. This can be done either with email, SMS or mobile app.
I am actually looking forward to trying this one. seems like a funny one as long as you do not mind the crappy looking art style