Formation Builder Idle
Released 27 October 2026 · PC · Casual, Indie, RPG
Every hero changes the heroes beside it. Arrange 46+ heroes on a grid, chain their abilities, and find the layout that multiplies your damage. Then prestige across 21 worlds, fight with mounts, and run missions, mines and a workshop while you're away.
Story
Every hero changes the heroes beside it Formation Builder Idle is an idle RPG about placement. Your heroes fight on their own, but where you put them decides how hard they hit. Move one hero by a single slot and your damage can change by orders of magnitude. A puzzle made of 46 heroes Every ability reads the grid. Some heroes buff their neighbors, some buff a whole column, and some care about traits or the entire formation. Lorn buffs every neighbor, and gets stronger for each neighbor and each different trait among them. Perrin copies the buffs aimed at him and passes them to the column in front. Nerissa gets stronger the more positional buffs point at her. Falgrim counts the traits he shares with his neighbors, and his bonus grows with the square of that count. With 17 traits, gear on every hero and a scarf stat that strengthens that hero's ability, the best layout keeps changing as your roster grows. Save several formations per world and switch between them. Left-click levels a hero. Right-click buys max. Prestige across 21 worlds Push until the waves stop you, then prestige. Your gold becomes talent points to spend across 99+ talents, and each world pays out its own...
Gameplay
Every hero changes the heroes beside it Formation Builder Idle is an idle RPG about placement. Your heroes fight on their own, but where you put them decides how hard they hit. Move one hero by a single slot and your damage can change by orders of magnitude. A puzzle made of 46 heroes Every ability reads the grid. Some heroes buff their neighbors, some buff a whole column, and some care about traits or the entire formation. Lorn buffs every neighbor, and gets stronger for each neighbor and each different trait among them. Perrin copies the buffs aimed at him and passes them to the column in front. Nerissa gets stronger the more positional buffs point at her. Falgrim counts the traits he shares with his neighbors, and his bonus grows with the square of that count. With 17 traits, gear on every hero and a scarf stat that strengthens that hero's ability, the best layout keeps changing as your roster grows. Save several formations per world and switch between them. Left-click levels a hero. Right-click buys max. Prestige across 21 worlds Push until the waves stop you, then prestige. Your gold becomes talent points to spend across 99+ talents, and each world pays out its own World Essence. There are 125 stages to clear, and World Mastery rewards you for going back to earlier worlds with a stronger team. Mounts and the Tower of Domination There's a second combat game...
Features
- Single-player
- In-App Purchases
- #category_playable_at_your_own_pace
- Playable without Timed Input
- Save Anytime
- Family Sharing
Release details
Formation Builder Idle is a Casual, Indie and RPG game by Idle Games LLC. Formation Builder Idle came out on Tuesday, 27 October 2026 on PC. This date comes from Steam and was last checked on 27 October 2026.
Frequently asked questions
When did Formation Builder Idle come out?
Formation Builder Idle came out on 27 October 2026.
Which platforms is Formation Builder Idle on?
Formation Builder Idle is on PC.
Who makes Formation Builder Idle?
Formation Builder Idle is developed by Idle Games LLC.
What kind of game is Formation Builder Idle?
Formation Builder Idle is a game of these genres: Casual, Indie and RPG.