100년전쟁 (100 Year War) is an Android simulation game developed by 주필굿밴디츠 that offers players an engaging experience in eco-raising and humanity restoration. The game provides a celebratory gift of 50,000 gems and 200 drawing tickets, along with a welcome coupon "/100yearwar." It boasts fast and enjoyable growth for all players, including non-paying users, without the need for complex systems to learn.

Players can collect and strengthen powerful helpers, summoning up to 3 units simultaneously to concentrate fire on enemies. The gameplay involves killing monsters, purifying the earth, and defeating enemies to enhance eco-raising fun. Additionally, the Flower Guild System allows players to create and develop guilds collaboratively, contributing to eco-strength together.