The month before Dwarf Fortress was released on Steam (and Itch.io), the brothers Zach and Tarn Adams made $15,635 in revenue, mostly from donations for their 16-year freeware project. The month after the game’s commercial debut, they made $7,230,123, or 462 times that amount.
“The fairytale ending is reality, but you didn’t kiss the toad,” Zach Adams wrote on Bay 12 Games’ forums. “You gave him money.” He went on to write the kind of grateful response to fans you don’t often see from game developers:
The appreciation you give us is part of our being now. It carries us in the cars we drive. It sustains us as the food that we eat. There is now no longer any existence except the one that you have provided. When we pass from this world, you will be the reason we are remembered.
Tarn Adams noted that “a little less than half will go to taxes,” and that other people and expenses must be paid. But enough of it will reach the brothers themselves that “we’ve solved the main issues of health/retirement that are troubling for independent people.” It also means that Putnam, a longtime modder and scripter and community member, can continue their work on the Dwarf Fortress code base, having been hired in December.
The “issues of health/retirement” became very real to the brothers in 2019 when Zach had to seek treatment for skin cancer. The $10,000 cost, mostly covered through his wife’s employer-provided insurance, made them realize the need for more robust sustainability. “You’re not just going to run GoFundMes until you can’t and then die when you’re 50,” Tarn told The Guardian in late 2022. “That is not cool.” This realization pushed them toward a (relatively) more accessible commercial release with traditional graphics, music, and tutorials.
As of today, Dwarf Fortress’ Steam page summarizes the game’s more than 17,000 reviews as “Overwhelmingly Positive.” “I am speechless to people around me between game sessions,” wrote jozef.sova. “Had my Chief Militia Commander tackle a Giant Cyclops over a waterfall ravine 10 stories killing it at the bottom,” wrote DEV. “Guy couldn’t get out and he drowned, may he never be forgotten.”
While the commercial release of Dwarf Fortress has earned the brothers some breathing room and introduced new players with some quality-of-life offerings, the “classic” version—the one Ars editor Casey Johnston detailed over her 10-hour ordeal—is still free to download.