Calliope’s base attack speed is already high, but adding Dexterity perks makes her lethal against swarms.
Technology Tree Progression Guide (Edited) - Steam Community
Suggest for higher difficulty settings. Let me know how you'd like to refine your strategy ! They Are Billions Campaign Guide 500% - Steam Community
Once the first waves arrive, you must pivot from pure expansion to . The "Double-Threat" Defense they are billions calliope build new
Normally, you spend stone and wood on layers of defense for a new housing district. With Calliope on patrol, you don't need that.
If you are trying this strategy, watch out for these three fatal errors:
Let your heavily armored Soldiers draw the aggression of the horde while Calliope flanks to pick off high-threat targets like Spitters and Chubby infected. Calliope’s base attack speed is already high, but
In this build, we prioritize the "Calliope" archetype—a unit with high splash damage, extreme range, but low mobility and high cost. (If playing vanilla, this translates to a heavy investment in Snipers or Ballistas backed by Titan support).
to kite hordes. A common consensus among experienced players is that a viable build must balance damage to reduce the number of shots required for kills with enough health/armor to tank at least one surprise hit. Core Build Priorities To optimize Calliope, prioritize these stats in order: Attack Damage & Range
Just one point in each ( Armor +15% and Life +30% ) allows Calliope to survive up to 3 hits from a Harpy rather than dying instantly. They Are Billions Campaign Guide 500% - Steam
Calliope commands —a pair of rapid-fire pistols. By default, her base stats favor high movement speed, fast reload intervals, and minimal noise generation. However, she suffers from low initial health and subpar damage output per shot.
Unlike Caelus, who is a slow, heavy-hitting tank, Calliope relies on high attack speed
Calliope’s pistols generate moderate noise. If you stand in one spot firing continuously, the sound will pull infected from deep within the fog of war.
Do not build one long line of walls. Build "pockets." Create a square of walls with a gap in the front. The zombies will funnel into the gap, creating a clump. A single Calliope rocket hitting that clump can kill 30 zombies instantly. This maximizes the splash damage efficiency.