CasualIndieRPG
Formation Builder Idle
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.
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Guides for Formation Builder Idle
No guide published yet. We only publish when a game has at least three verifiable sources and three verbatim player quotes. This game is queued for review.
About this game
Developer description
Quoted from the Steam store page. Read the full description
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…
Media
Screenshots
Images: Idle Games LLC via Steam, shown for editorial coverage.
Specs
System requirements
Published by the developer on Steam. Not our own benchmark.
minimum
Minimum:
- Memory: 512 MB RAM
- Storage: 1 GB available space
FAQ
Common questions
When was Formation Builder Idle released?+
Steam lists the release date as Oct 27, 2026.
What platforms is Formation Builder Idle available on?+
Windows, macOS, Linux
How is Formation Builder Idle reviewed on Steam?+
No English review data captured yet.







