Boris and the Dark Survival, a spin-off of the acclaimed, early cartoon-esque Bendy games, is currently free on Google Play. It normally costs 99c.
The game sees you playing as Bendy’s companion Boris, who’s searching an abandoned cartoon studio for supplies. Unfortunately, there’s an ink demon in the premises, and he intends to destroy you.
The aim is to last as long as you can, by finding supplies and evading the ink demon. The cartoon studio is randomly generated, so each play through is different.
As well as this freebie you can also pick up Bendy and the Ink Machine, a first-person cartoon horror game, for $2.99, down from its usual price of $6.99.