Keys

Keys are used to open locked treasure chests or rooms. A key can be used when a triangular glowing sign (green, yellow, or black) with a key symbol appears. The player's inventory can hold up to five of each key type, and they cannot be sold or discarded.

Keys[]

Small[]

Starting price (Rebirth 1): 2,500
Cumulative price increase per rebirth: 500
Color: Green
Function: Unlocks chests containing common items, low-value gems, or gold slightly exceeding the key's cost.
Acquisition: Can be bought, found in chests, won in battles, or occasionally picked up.

Medium[]

Starting price (Rebirth 1): 5,000
Cumulative price increase per rebirth: 1,000
Color: Yellow
Function: Unlocks chests with better rewards than small key chests.
Acquisition: Dropped by stronger enemies; rarely found lying around.

Large[]

Starting price (Rebirth 1): 100,000
Cumulative price increase per rebirth: 5,000
Color: Black
Function: Unlocks five specific black chests and a room near the top of the tower, leading to imprisoned Deathless. Rewards include rare items or significant gold.
Acquisition: Bought in the store or dropped by difficult Titans or Deathless. The first large key is awarded after defeating MX-Goliath.
Design: Resembles a regular key, with one end forming a circle with seven rays, the eighth being the key itself.

Keys in Infinity Blade III[]

Small Key: 40 chips
Medium Key: 150 chips
Large Key: 450 chips