Currencies

Bits

Bits are the currency used to unlock and upgrade Chips and Chip Slots, earned from Guild Weekly Reward Chests and the Guild Store.

Cash

How Cash works in The Tower: Idle Tower Defense — earning sources, wave payouts, interest, and every way to improve your cash flow during runs.

Coins

Coins are the main currency in The Tower: Idle Tower Defense. Learn how to earn coins, improve coin flow, and how the Coin Bonus enhancement works.

Currency

Overview of The Tower's currencies: Cash, Coins, Gems, Power Stones, Medals and Elite Cells — how you earn and spend each one.

Elite Cells

Elite Cells are a currency dropped by Elite enemies in The Tower, used to buy lab boosts. Learn how to earn and increase them.

Gems

Gems are a premium currency in The Tower: Idle Tower Defense. Learn every way to earn them and what to spend them on.

Keys

Keys are a currency earned from Legend Tournament placements and spent on unique Tower upgrades in the Vault's Tech Trees.

Medals

Medals are a currency earned from events and missions in The Tower: Idle Tower Defense, spent in the Event Shop on items like Gems, Bots and Relics.

Power Stones

Power Stones are a premium currency in The Tower used to buy and upgrade Ultimate Weapons. Learn how to earn or purchase them.

Shards

Module Shards are a currency in The Tower: Idle Tower Defense, used for the game's module system.

Tokens

Tokens are a currency in The Tower: Idle Tower Defense earned from Weekly Challenges and Guild Chests, spent in the Guild shop.