I noticed a sort of spike in Christian games/developers, or at the very least with messaging and symbolism. I'm sure a lot of people know of the Faith trilogy, but also Doors from roblox surprisingly has Chrisitan symbolism, Mr Hopps Playhouse outright has the player fighting Satan, and even Amanda the adventurer talks about Biblical demons and how evil they are.
I try to use at least some symbolism myself however only two of our games really have much of it; Coming Home and Another Nightmare.