Imperial Bastion
- Setting
- Warhammer 40,000
- Type
- Stage
- Stage number
- 1
- Time limit
- 25 minutes
- Last boss
- Norn Emissary
- Music
- Imperial Bastion
In-game description
How to unlock
- Open from the start
- Incantation "ferrocrete"Unlocks the stage and its 'Eavy Metal
Bosses
TermagantMinutes 1 and 3. Wounds 20. Carries the minute's treasure chest at minutes 1 and 3.
Von Ryan's LeaperMinutes 4 and 6. Wounds 40. Carries the minute's treasure chest at minutes 4 and 6.
WarriorMinutes 8, 10 and 11. Wounds level x 13. Carries the minute's treasure chest at minutes 8, 10 and 11.
BiovoreMinute 13. Wounds level x 30. Carries the minute's treasure chest at minute 13.
CarnifexMinute 15. Wounds level x 250. Carries the minute's treasure chest at minute 15.
ZoanthropeMinutes 16 and 18. Wounds level x 50. Carries the minute's treasure chest at minutes 16 and 18.
Winged Tyranid PrimeMinutes 19 and 23. Wounds level x 100. Carries the minute's treasure chest at minutes 19 and 23.
Hive TyrantMinute 21. Wounds level x 200. Carries the minute's treasure chest at minute 21.
Norn EmissaryMinute 25. Wounds level x 500, at least 10,000.
Modifiers
| Modifier | Normal | 'Eavy Metal | Grim Darkness |
|---|---|---|---|
| Time Limit | 25 min | 25 min | 25 min |
| Clock Speed | 100% | 100% | 100% |
| Move Speed | 135% | 200% | 135% |
| Enemy speed | 125% | 190% | 125% |
| Projectile speed | 100% | 115% | 100% |
| Coin Bonus | 130% | 180% | 330% |
| Enemy Wounds | 100% | 100% | 300% |
| Chance Bonus | +0% | +10% | +20% |
| XP Bonus | 100% | 100% | 100% |
| Enemy Wounds growth | +5% per minute | ||
| Enemy speed growth | +0.5% per minute |
'Eavy Metal
In-game description
Grim Darkness
In-game description
Enemies by minute
| Minute | Enemies | Bosses | Event enemies |
|---|---|---|---|
| 1 | Ripper | Termagant | Termagant, Ripper |
| 2 | Termagant, Ripper | Termagant, Ripper | |
| 3 | Termagant | Termagant | Termagant, Spore Mine |
| 4 | Termagant | Von Ryan's Leaper | Ripper |
| 5 | Termagant | Termagant, Hormagaunt | |
| 6 | Hormagaunt | Von Ryan's Leaper | Termagant |
| 7 | Ripper | Von Ryan's Leaper, Hormagaunt, Termagant | |
| 8 | Termagant | Warrior | Termagant, Spore Mine |
| 9 | Termagant | Ripper, Hormagaunt, Termagant with an arcana chest |
| Minute | Enemies | Bosses | Event enemies |
|---|---|---|---|
| 10 | Termagant | Warrior | Hormagaunt |
| 11 | Termagant | Warrior | Hormagaunt |
| 12 | Hormagaunt | Termagant | |
| 13 | Hormagaunt, Termagant | Biovore | Hormagaunt |
| 14 | Termagant | Spore Mine | |
| 15 | Termagant | Carnifex | Hormagaunt |
| 16 | Hormagaunt | Zoanthrope | Termagant, Ripper, Von Ryan's Leaper |
| 17 | Termagant, Hormagaunt | Ripper, Warrior, Hormagaunt | |
| 18 | Termagant | Zoanthrope | Ripper, Spore Mine, Termagant with an arcana chest |
| 19 | Hormagaunt, Termagant, Ripper | Winged Tyranid Prime |
| Minute | Enemies | Bosses | Event enemies |
|---|---|---|---|
| 20 | Hormagaunt, Spore Mine | Ripper, Termagant, Von Ryan's Leaper, Spore Mine | |
| 21 | Termagant, Ripper | Hive Tyrant | Hormagaunt |
| 22 | Spore Mine, Termagant, Von Ryan's Leaper, Ripper | Termagant, Zoanthrope | |
| 23 | Termagant, Hormagaunt | Winged Tyranid Prime | |
| 24 | Hormagaunt, Termagant, Warrior, Von Ryan's Leaper | Spore Mine | |
| 25 | Norn Emissary |
Enemies
RipperMinutes 1, 2, 4, 7, 9 and 16 to 22- TermagantMinutes 1 to 24
Spore MineMinutes 3, 8, 14, 18, 20, 22 and 24- Von Ryan's LeaperMinutes 4, 6, 7, 16, 20, 22 and 24
HormagauntMinutes 5 to 7, 9 to 13, 15 to 17, 19 to 21, 23 and 24- WarriorMinutes 8, 10, 11, 17 and 24
- BiovoreMinute 13
- CarnifexMinute 15
- ZoanthropeMinutes 16, 18 and 22
- Winged Tyranid PrimeMinutes 19 and 23
- Hive TyrantMinute 21
- Norn EmissaryMinute 25
Treasure chests by minute
| Minute | Carried by | 5 prizes (Chance 100%) | 3 prizes (Chance 100%) | 1 prize (Chance 100%) | No chest (Chance 100%) |
|---|---|---|---|---|---|
| 1 | Termagant | 1%: 1 evolution and 4 upgrades | 4.95%: 1 evolution and 2 upgrades | 94.05%: 1 evolution | |
| 3 | Termagant | 1%: 1 weapon upgrade and 4 upgrades | 4.95%: 1 weapon upgrade and 2 upgrades | 94.05%: 1 weapon upgrade | |
| 4 | Von Ryan's Leaper | 1%: 1 weapon upgrade and 4 upgrades | 4.95%: 1 weapon upgrade and 2 upgrades | 94.05%: 1 weapon upgrade | |
| 6 | Von Ryan's Leaper | 1%: 1 weapon upgrade and 4 upgrades | 4.95%: 1 weapon upgrade and 2 upgrades | 94.05%: 1 weapon upgrade | |
| 8 | Warrior | 0% | 5%: 1 weapon upgrade and 2 upgrades | 95%: 1 weapon upgrade | |
| 9 | Termagant (arcana chest) | 0% | 0% | 100%: 1 Emperor's Tarot card |
| Minute | Carried by | 5 prizes (Chance 100%) | 3 prizes (Chance 100%) | 1 prize (Chance 100%) | No chest (Chance 100%) |
|---|---|---|---|---|---|
| 10 | Warrior | 3%: 1 evolution, 1 upgrade, 1 Emperor's Tarot card and 2 weapon upgrades | 9.7%: 1 evolution, 1 upgrade and 1 Emperor's Tarot card | 87.3%: 1 evolution | |
| 11 | Warrior | 3%: 1 evolution, 2 upgrades and 2 weapon upgrades | 9.7%: 1 evolution and 2 upgrades | 87.3%: 1 evolution | |
| 13 | Biovore | 1%: 1 evolution and 4 upgrades | 4.95%: 1 evolution and 2 upgrades | 94.05%: 1 evolution | |
| 15 | Carnifex | 10%: 1 evolution and 4 upgrades | 27%: 1 evolution and 2 upgrades | 63%: 1 evolution | |
| 16 | Zoanthrope | 1%: 1 evolution and 4 upgrades | 4.95%: 1 evolution and 2 upgrades | 94.05%: 1 evolution | |
| 18 | Zoanthrope | 3%: 1 evolution and 4 upgrades | 9.7%: 1 evolution and 2 upgrades | 87.3%: 1 evolution | |
| 18 | Termagant (arcana chest) | 0% | 0% | 100%: 1 Emperor's Tarot card | |
| 19 | Winged Tyranid Prime | 3%: 1 evolution and 4 upgrades | 29.1%: 1 evolution and 2 upgrades | 67.9%: 1 evolution |
| Minute | Carried by | 5 prizes (Chance 100%) | 3 prizes (Chance 100%) | 1 prize (Chance 100%) | No chest (Chance 100%) |
|---|---|---|---|---|---|
| 21 | Hive Tyrant | 3%: 1 evolution and 4 upgrades | 9.7%: 1 evolution and 2 upgrades | 87.3%: 1 evolution | |
| 23 | Winged Tyranid Prime | 3%: 1 evolution and 4 upgrades | 9.7%: 1 evolution and 2 upgrades | 87.3%: 1 evolution |
Who carries the chest
Each boss of the minute rolls in turn. The first boss whose roll gives a chest carries it.
Chest size
The roll gives 5 prizes, otherwise 3 prizes, otherwise 1 prize, otherwise no chest. Your Chance stat multiplies the chance of each step, so a Chance above 100% raises the odds of the bigger chests.
| Chest | Coins |
|---|---|
| 5 prizes | 300 to 600 |
| 3 prizes | 150 to 300 |
| 1 prize | 65 to 130 |
Evolution prizes
An evolution prize gives an evolution whose requirements you meet, otherwise a weapon upgrade.
Card prizes
A card prize needs the card mode switched on and an unlocked card left to draw, otherwise it becomes an evolution prize.
Rescues
Values from the Warhammer Survivors release version of 10 November 2026.