Daichikun Crisis: Do Natural

Daichikun Crisis: Do Natural (大地くんクライシス DO NATURAL), subtitled "Strategic Farm Simulation" is a simulation game developed and published by Salio for the PC Engine in Japan in 1989. It is notable to exploring the farm simulation theme several years before the series Harvest Moon appeared and made the genre more popular.

Story
The game follows a family of cow anthropomorphs as they cultivate their home of Moo Cow Island; The titular Daichikun and his family members: Hokkaido (grandpa), Suzuran (mama), Oozora (little brother), Marimo (little sister) and their friends Goro the bear and Alice the crow.

It is thought to be derived from an educational kid's TV show about agriculture shown in the Hokkaido region. Fans have observed the similarity of Daichikun's family and companions and those featured in the TV show, and the similar theme of farming in a harsh climate.

Gameplay
Daichikun Crisis uses a real-time strategy format where players explore the island and plant various crops. They must also fight off the occasional monster attack from the nearby volcanos and clear the resulting toxic ash away.

Apart from Daichikun, all other characters are AI controlled and will follow the player until they find themselves a task to complete. Daichikun can use the flying "Geiger No" vehicle to move around and clear ash away quickly, though it cannot attack.

Additional factors unlock as the player progresses with the game, like a port town and various power-ups. The game is on a fast seasonal cycle - a minute represents a month - and various crops do better (or worse) depending on the time of the year.