content wiki
Caves
Caves are ticket-based side activities for targeted resources: runes, crystals, and pet upgrade materials.
Source basis
The caves page lists Cave of Runes, Cave of Crystal, and Abandoned Courtyard, each entered with Cave Tickets and playable with up to 4 players.
Official Iron Soul Wiki caves pageThis page paraphrases public source material and avoids hidden formulas unless reliable public sources confirm them.
Quick facts
Cave of Runes
Used to collect runes for enchanting.
Cave of Crystal
Used to collect crystals for blessing.
Abandoned Courtyard
Used to collect materials for pet upgrades.
Wiki notes
Ticket use
The cave page warns that entering a cave consumes a Cave Ticket. This makes caves a targeted resource activity rather than something to enter blindly.
Each cave type is described with four levels, which implies higher tiers should be approached when your combat and gear can support them.
- Need runes: Cave of Runes.
- Need crystals: Cave of Crystal.
- Need pet materials: Abandoned Courtyard.
What to do in game
Spend cave tickets on the upgrade material you actually need next.
Run caves with a small group when solo clears are slow.
Avoid using tickets only because they are available; save them for bottleneck upgrades.