Blood Debt - Progressive Base Hordes
🟡 Updated this yearPreview

🔍 Analysis
- 🏆 #91 of 121 Miscellaneous mods in this game by downloads
📋 About This Mod
Every 500 zombie kills creates a progressive nine-wave assault around your base, with scaling enemies, Carrier bosses and valuable rewards.
BLOOD DEBT
PROGRESSIVE BASE HORDES
Every 500 kills, the dead come to collect.
OVERVIEW
Blood Debt introduces a complete, progressively scaling base-horde system to SurrounDead.
Every 500 lifetime zombie kills creates a new horde milestone. Once you return to your Buildable Base Marker, your base will be attacked by a large three-phase encounter containing nine increasingly dangerous waves.
Each horde combines normal infected, special enemy variants, powerful bosses and rare Carrier enemies. As your total zombie kill count increases, future hordes receive additional health scaling, creating a repeatable late-game challenge that continues to grow alongside your character.
MAIN FEATURES
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[]A new horde milestone every 500 lifetime zombie kills.[/]
[]Hordes automatically begin near your Buildable Base Marker.[/]
[]Milestones reached away from your base remain queued until you return.[/]
[]3 phases and 9 waves per complete encounter.[/]
[]94 enemies in total, including 18 bosses.[/]
[]Progressive health scaling based on your lifetime zombie kills.[/]
[]Rare Carrier bosses with enhanced health, damage, size and speed.[/]
[]Named weapons, Legendary weapons and Credit rewards.[/]
[]An additional All Access Keycard reward system.[/]
[]A fixed 40-metre spawn ring with 16 distributed spawn positions.[/]
[]One-shot anti-stuck protection for invalid or unreachable enemies.[/]
[]Independent corpse-retention timers.[/]
HOW TO START A HORDE
Blood Debt monitors your lifetime zombie kill count and prepares a new encounter whenever you reach another multiple of 500.
The horde begins once you are within 100 metres of a placed Buildable Base Marker.
If you reach the milestone while away from your base, the encounter is placed in a queue. It will automatically begin after you return to the Base Marker area.
The mod does not activate milestones that were already passed before installation. Instead, it prepares the next available multiple of 500.
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[]Installing at 181 kills prepares the 500-kill horde.[/]
[]Installing at 1,240 kills prepares the 1,500-kill horde.[/]
[]Installing at 10,000 kills prepares the 10,500-kill horde.[/]
HORDE STRUCTURE
Each complete horde contains three phases and nine waves.
Phase 1 — Initial Assault
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[]Wave 1: 6 normal enemies and 1 boss[/]
[]Wave 2: 8 normal enemies and 2 bosses[/]
[]Wave 3: 10 normal enemies and 2 bosses[/]
[]Maximum active enemies: 8[/]
Enemy types include Roamers, Crawlers and small boss variants.
Phase 2 — Reinforced Horde
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[]Wave 1: 8 normal enemies and 1 boss[/]
[]Wave 2: 10 normal enemies and 2 bosses[/]
[]Wave 3: 12 normal enemies and 3 bosses[/]
[]Maximum active enemies: 10[/]
Enemy types include Horde Infected, Zombie Dogs and stronger boss variants.
Phase 3 — Final Offensive
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[]Wave 1: 10 normal enemies and 1 boss[/]
[]Wave 2: 12 normal enemies and 2 bosses[/]
[]Wave 3: 4 final bosses[/]
[]Maximum active enemies: 6[/]
Enemy types include Infected, Radiated enemies and the strongest available boss variants.
WAVE PROGRESSION
The next wave is prepared when the current wave reaches two or fewer living enemies.
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[]Delay between waves: 15 seconds.[/]
[]Delay between phases: 20 seconds.[/]
Enemies left alive from an earlier wave remain part of the encounter.
Enemies spawn around the Base Marker on a fixed 40-metre ring. Sixteen distributed spawn positions are used to reduce excessive stacking and create attacks from multiple directions.
PROGRESSIVE DIFFICULTY
Enemy health is calculated from the milestone that started the encounter and remains fixed for the duration of that horde.
[]500 kills: Normal 0. 80x / Boss 0. 80x[/]
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[]Delay between waves: 15 seconds.[/]
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[]Wave 1: 10 normal enemies and 1 boss[/]
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[]Wave 1: 8 normal enemies and 1 boss[/]
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[]Wave 1: 6 normal enemies and 1 boss[/]
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[]Installing at 181 kills prepares the 500-kill horde.[/]
📊 Mod Details
- Game
- Surroundead Mods
- Author
- YouNeverOver
- Version
- v1.0.0
- Downloads
- 249
- Endorsements
- 1
- Category
- Miscellaneous
- Created
- 7/28/2026
- Updated
- 7/28/2026
- Tags
- Gameplay
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