| Mistake | Calliope Fix | |---------|---------------| | Building too many Rangers | Stop at 4. Train Soldiers after Day 5. | | Expanding before walls | No outer building until a Wood Gate is placed. | | Researching Logistics first | Research Farming first (food = more Cottages = gold). | | Ignoring energy cap | Build Windmill on Day 4 exactly, not earlier. |
Perk points are rewarded exclusively by completing Tactical Scouting Missions for the first time. Plan your progression tree using this specific stat hierarchy:
At the very start of the campaign, you are given a crucial choice between two heroes: the tanky Caelus or the swift Calliope. As a "New Empire Top Agent," Calliope is entrusted with the critical task of recovering humanity's lost technology. She wields a pair of fast-firing pistols called The Devil's Sisters , which define her hit-and-run style. However, this firepower comes at the cost of low individual shot damage and, most critically, very low health, making her a true "glass cannon" who must remain in constant motion to survive. they are billions calliope build new
The New Empire biome features:
By day 20, you must have Ballistas guarding your primary expansion routes. | Mistake | Calliope Fix | |---------|---------------| |
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.
Even with high damage, Calliope is fragile. If a Harpy or a pack of infected Executives closes the distance, she needs to survive the initial hits. The consensus for higher difficulties (like 800%) is to . | | Researching Logistics first | Research Farming
This paper analyzes a novel build order and strategic role for the Calliope unit in They Are Billions (post-2024 balance context assumed). It outlines unit strengths/weaknesses, optimal tech path, economy and base layout integration, tactical use in offensive and defensive phases, counters, and suggested micro and macro considerations. The goal is a reproducible, high-win-rate approach for mid-to-late game survival.
Do not wait for the final wave to clear the Doom Villages. Use your sniper ball to clear them as soon as possible for extra resources. Summary of the Calliope Build Focus Early: Rapid Tents + Wood (Day 1-10) Mid: Ballistas/Spike Traps + Iron/Stone (Day 11-40) Late: 100+ Snipers + Titans (Day 41+)