Coins
From Idle Server Defender
Coins[edit]
Coins are a core progression currency.
Their main use is buying and scaling Shop Upgrades (persistent upgrade progression). Their second major use is starting Downloads.
Main Uses (in order)[edit]
1) Upgrades (Primary Coin Sink)[edit]
Most Coins are spent in the Shop to increase upgrade levels (base/increase levels).
Why this matters:
- Upgrades are the main long-term stat growth path.
- Coin demand rises quickly as upgrade costs scale.
- Most mid/late-game Coin spending goes here.
2) Downloads (Secondary Coin Sink)[edit]
Downloads also cost Coins to start, then complete over time.
Why this still matters:
- Downloads unlock important systems and multipliers.
- They gate category progression and utility expansion.
- Even though they are usually not the #1 sink, they are still critical progression spend.
How You Earn Coins[edit]
Common sources:
- Enemy kills
- Wave progression effects
- Milestone rewards
- Coin Worker (active + idle)
- Multipliers from boosts/modules/upgrades/executables
Coins vs Bits[edit]
- Coins = persistent progression spending (mainly Shop upgrades, then Downloads)
- Bits = run currency (run upgrades/modules during gameplay)
Quick Summary[edit]
Coins are primarily an upgrade currency, with Downloads as the next major use. If Coin income is weak, both power scaling and unlock progression slow down.
