They Are Billions Calliope Build New May 2026
Once the Calliope foundation is set (Day 6, ~400 gold/tick, 6+ soldiers), shift to:
The rhythm established in the first six days directly determines if you can survive the first wave (Day 10) and the second wave (Day 20). Calliope builds consistently achieve a 90%+ survival rate to Day 12 on 400% difficulty in New Empire.
| 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. |
The core mechanic of this build is the Kite-Sprint. Calliope is faster than standard infantry but slower than a ranger. The trick is "shoot-moving."
How to clear with Calliope (Day 5-15):
Why this works: You are trading safety for speed. A ranger clears one zombie per second. Calliope clears a wave of 30 zombies in 10 seconds. The "noise" penalty is irrelevant because you are inviting the horde to a kill box you control.
1. Vision is Ammunition Artillery units cannot shoot what they cannot see. In the late game, Rangers become obsolete as fighters. Repurpose them as "Eyes." Push them forward into the fog, let them spot the incoming wave, and then retreat behind your Calliope line. Once the wave is spotted, the Calliope rockets will rain down before the zombies even trigger the Rangers' retreat range.
2. The "Square of Death" 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.
3. Harpies and Venom The weakness of the Calliope build is fast flyers (Harpy) and spitters (Venom). Your artillery turns too slowly to track Harpies.
4. The Last Stand Modification During the final wave (The Billions), the sheer volume of they are billions calliope build new
Mastering Calliope: The Ultimate Build and Strategy Guide for They Are Billions
In the brutal campaign of They Are Billions, your choice of hero dictates how you survive tactical missions. While Caelus offers raw area-of-effect power, Calliope is the master of speed, kiting, and surgical precision. Building her correctly is the difference between a frustrating death at the hands of a Harpy and a lightning-fast map clear. Calliope: Unit Overview
Calliope utilizes "The Devil's Sisters," a pair of rapid-fire pistols. Her core identity revolves around high mobility and high attack frequency, balanced by low health and shorter range than her counterpart.
Base Movement Speed: 3.2 (Extremely fast, allowing her to outrun almost anything). Base Attack Range: 4.5.
Combat Style: High-intensity kiting and "hit and run" tactics. The Optimized Calliope Build
Building Calliope is about maximizing her strengths while patching up her fatal weakness: her low durability against special infected. 1. Prioritize Range and Damage
To deal with Harpies—the most dangerous threat for Calliope—you must be able to kill them before they reach you.
Max Range: Investing in range is non-negotiable. At max range (roughly 6.5), you can often finish off Harpies before they can land a single hit.
Attack Damage: Aim for upgrades that allow you to 2-shot Runners or 4-5 shot Harpies. 2. The Survivability "Sweet Spot" Once the Calliope foundation is set (Day 6,
On high difficulties (800%), Calliope is often a 3-shot kill for Harpies.
Armor & HP: Take at least one point in Armor and one point in HP. This allows her to survive up to 3 hits, giving you a crucial margin for error during high-intensity kiting. 3. Attack Speed vs. Load Speed Calliope | They Are Billions Wiki
Calliope 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
The most effective skill point allocation focuses on reaching a specific damage threshold that allows Calliope to "4-shot" Harpies (the deadliest enemy in tactical missions). Primary Stat Focus: Damage & Range
Damage Node Priorities: Aim to take at least three of the four major damage upgrades (e.g., , , and ) to reach approximately 33 damage per shot. Range & Vision: Investing in +1positive 1
Range (Improved Vision I/II) is critical. This extra reach is often the difference between kiting a Harpy flawlessly and being hit. Secondary Stat Focus: Attack Speed & Utility
Attack Speed: Calliope's base speed is 5 attacks per second. Upgrades can push this significantly higher (up to 14.29 with 3 perks), allowing her to mow down "chubbies" and runners quickly.
Reload Speed: A single point in 40% Reload Speed is highly recommended by veteran players on platforms like Steam Community as it makes her firing animations smoother and reduces the need for manual animation cancelling. Skill Tree Allocation Strategy
You earn one skill point for each scouting mission completed, with a total of 9 usable points before the final mission. Tier High Damage (Aim II, III, IV) The rhythm established in the first six days
Crucial for clearing tactical missions at higher difficulties (e.g., 500%+). High Range (Vision I/II) Keeps Calliope safe from melee specials. Mid Attack Speed (Dexterity) Dramatically increases DPS against high-HP single targets. Low Life & Armor
Generally seen as "traps." It is better to kill enemies before they touch you. Tactical Combat Guide
Grenade Usage: Grenades are your only reliable AoE (Area of Effect). Save them for dense packs of Runners or to soften up Harpies. Note that grenades do not cause self-damage.
Targeting Settings: Set Calliope to "High Priority" when facing specials (Chubbies/Harpies) so she doesn't waste shots on basic infected while high-threat targets approach. Movement: Use her superior movement speed (
base) to "kite" hordes. Never stand still if a large pack is approaching, as her low health ( HP) makes her extremely vulnerable to being overwhelmed. Hero and Perk test results - They Are Billions
If you are trying this They Are Billions Calliope Build New strategy, watch out for these three fatal errors:
In a standard build, you build a barracks and spam rangers. In the Calliope build new, you sell the starting tent, rush a wood workshop immediately, and beeline for the Foundry tech.
Day 1-5 Priority:
By the final wave, you should have 6-8 Calliopes protecting your outer defenses. Do not put them on the front line (they have only 300 HP). Put them directly behind your Thanatos bunkers.
The Final Tip: 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.
Trigger them in sequence: Left flank, then Right flank, then Center. This staggered buff will melt even the Mutant hordes.
