Waves 11 to 15 are the mid-game wall where weak builds collapse. Sustain and clear speed decide it.
Why this matters
Enemy density and damage climb here; without lifesteal and AoE you get buried.
Step-by-step
- Make sure Life Steal is online (10 to 15 percent).
- Add AoE or Attack Speed so packs die before surrounding you.
- Push your main damage stat past 25.
- Keep Move Speed or Dodge to avoid being pinned.
- Upgrade weapons so their damage keeps pace.
What to prioritize
- Life Steal
- AoE or Attack Speed
- Damage stat past 25
- Mobility
- Weapon upgrades
Common mistakes
- No Life Steal by wave 11
- Single-target only
- Stalled weapon levels
Waves 11 to 15 are where unfocused builds collapse. Lifesteal and area damage are the two stats that carry the mid-game, so add both before wave 11 arrives. Push your damage stat past 25 so packs die before they surround you.
Keep weapons upgraded so their base damage keeps pace with rising enemy HP. Lifesteal plus area damage turns these waves into routine clears that never threaten the run.
The wall feels unfair until the build answers it. After that, the same waves become the safest part of the run, because nothing on screen out-damages your sustain.
Both stats belong in the build before wave 11, not after the first death.