Zardnaar
Legend
Not as cheap as you might think. They received nearly a million dollars in a Kickstarter campaign to supplement their existing development budget. They also had a big publishing partner (Deep Silver).
Granted, it's not AAA levels of funding, but it's not a tiny indie game budget, either. It's probably comparable to Pillars of Eternity.
I think Pillars was 4 million. In game development that is money down the back of a couch levels. Witcher 3 80 million, GTA V 200+ million, Assassins Creed 100+ million.
You can still make good cheap games though (Sins of a Solar Empire, Europa Unversalis IV, most Paradox titles really).