Upgrades

From Idle Server Defender

Upgrades[edit]

Upgrades are the main Coin-spend progression in the Shop (Normal mode). They define your core combat, defense, and economy scaling.

Base vs Increase (important)[edit]

Every Upgrade has two separate level tracks:

  • Base level
    • Increases the starting/base stat value
    • Example: higher starting Damage, Health, Coins per Enemy, etc.
  • Increase level
    • Increases the per-upgrade-step growth (the scaling part)
    • Makes each additional level of that stat scale harder over time

Key point: Base affects base stat only. Increase affects increase/scaling stat only. They are different levers and should be balanced.

Simple example[edit]

If an upgrade behaves like:

  • Final Stat = BaseValue + (Current Upgrade Level × IncreaseValue)

Then:

  • leveling Base raises `BaseValue`
  • leveling Increase raises `IncreaseValue`

So Base gives stronger immediate floor, while Increase improves long-run scaling.

Upgrade categories[edit]

Upgrades are grouped by type:

  • Attack (Damage, Attack Speed, Range, Crit, Stun, Charge, etc.)
  • Defense (Health, Health Regen, Defense, Shield, Counter-Hack, etc.)
  • Utility (Coins/Bits gain, Speed Divider, Virus Scanner, etc.)

Some upgrades require category progression before they appear (Attack/Defense/Utility unlock progression).

Costs and buying[edit]

  • Currency: Coins
  • Base and Increase each have their own cost progression
  • Shop buy modes apply to both tracks (`1x`, `10x`, `100x`, `max`)
  • You cannot buy past each track’s max level

How Upgrades stack with other systems[edit]

Upgrade stats are further multiplied by other systems (when available), such as:

So a strong build usually invests in both:

  1. solid Base levels (immediate strength)
  2. strong Increase levels (better scaling)