KERF: Sawmill Tycoon

KERF: Sawmill Tycoon is a first-person sawmill simulation in which nothing happens without you. You start with an axe in a clearing at the foot of a waterfall, fell trees, cut the trunks into logs, haul them to the yard and feed a growing chain of machines that you operate by hand, where how steady you are decides what comes out. The valley has ten species of wood, with the best growing furthest away and opened up by reputation rather than money. Logs are never sold raw: you make planks, firewood, chips, pellets, bark, fertiliser and made-to-order furniture in three grades, and customers walk into the yard with orders for a specific product in a specific wood, which you crate and sell at the counter. Later you can hire workers for the machines and the counter, upgrade the mill level by level, drive your own truck, and dig out stumps and plant saplings, since the forest does not grow back by itself. There is a day and night cycle, no combat and no failure states, and streamers can connect Twitch or Kick so that chatting viewers walk in as customers. The developer's Steam AI disclosure says the game was made almost entirely with AI tools, that the code was written by an AI coding assistant, and that the developer did not model, rig or write code by hand. Made in Unity 6 by a one-person studio in Poland; a paid game on Steam for Windows, released 20 Aug 2026, with its interface in 15 languages.