The Tavern

Turn Crawl into a coin-op. Ask for a quarter dollar to continue after death. Game start stays gratis.
Assuming 2500 plays per day and that 1/500 would pay, you get 1.25 dollars per day. After 13.000.000.000 days, you can buy Steam and leave Crawl as the only available game. Then all the money in the gaming industry will flow towards Crawl. That means 30 billion dollars each year! You can then sell merchandise and have Phil Collins sing at your birthday.

Su - su- sussudio!

Father Linley will stop this plot

Implement buying gold with real money. This lets Gozag be the god of pay-to-win, which already fits the flavor. Rework Gozag to be more powerful, for higher gold costs, if needed.

https://www.youtube.com/watch?v=LSVq3UOZWCY
Pffffft. Only Michael McDonald could really do this party justice.

Just make it so you have to buy Crawl to play it, and also pay subscription fee every month. When a new version comes out, people also have to buy it. I heard this system works well for some games.
Another good way to make money is to sell DLCs. For $14.99 you can sell "Nude elf tiles pack", so all elves in the game become nude.

old school conan was so amazing. I should probably watch his current show more often.

You'd have to survive to Elf, or worse; play a Deep Elf.

Pfft... >dying in crawl.