2. The "Calliope New Build" - Mid-Game Expansion (Days 16–40)
End.
Once the first waves arrive, you must pivot from pure expansion to . The "Double-Threat" Defense they are billions calliope build new
is the "glass cannon" hero in They Are Billions , defined by high mobility and rapid-fire pistols, but hindered by low health and base damage. To build her effectively for modern campaign play, players prioritize damage benchmarks and attack range to neutralize high-threat specials like Harpies before they can close the distance. The "Harpy-Killer" Build
Master the New Empire: The Definitive Calliope Build Guide for They Are Billions The "Double-Threat" Defense is the "glass cannon" hero
The New Meta: Why the Calliope Build is Revolutionizing They Are Billions
When the swarm of 50,000 infected hits, pause the game. Click on each Calliope and set the "Song Mode" to Requiem (The slow, sad song). This reduces your Colony Happiness by 20, but increases unit damage by 25% for 60 seconds. Click on each Calliope and set the "Song
: The map is filled with explosive barrels. Do not shoot them randomly. Lure large groups of infected or Chubs near the barrels, then detonate them with a single shot.
Invest in at least three damage upgrades (+30%, +40%, +50%) to reach approximately . This allows Calliope to kill Harpies in exactly 4 shots.
Choosing Calliope completely transforms how you approach the game's tactical hero missions. While Caelus can sit stationary and obliterate clusters of infected with explosive area-of-effect (AoE) damage, Calliope relies heavily on raw speed, precise kiting, and specialized builds.
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.