It’s not only big budget. A number of indie games that I thought were superb didn’t go on to make enough money for that team to make another. Mimimi games made excellent games within their niche, but it wasn’t enough to keep finding funding, and they closed. A game like The Thaumaturge from last year has a similar scope, budget, and genre to Expedition 33, but I don’t know that they made enough to keep the studio going. Sword of the Sea this year released to excellent reviews but subpar sales. There are a lot of examples, but this is a snapshot.