Boosts
From Idle Server Defender
Boosts[edit]
Boosts are permanent collection items that give stat bonuses when equipped in your server slots.
They are simple:
- You buy boost cards with Gems.
- Cards increase a boost’s level over time.
- The boost only affects gameplay while it is equipped in a slot.
How Boosts Work[edit]
- Spend Gems to buy a random boost card.
- That card increases the chosen boost’s progress (`currentLevel`) by +1.
- Reaching card thresholds upgrades the boost tier (I → VII).
- Equip that boost in a server slot to activate its effect.
Boost levels are saved permanently, so progress carries over between runs.
Buying Boosts[edit]
- Cost per purchase: 20 Gems
- A purchase gives one random available boost
- The roll only includes boosts that:
- Are unlocked by your Attack/Defense/Utility download level
- Are not maxed
You cannot directly pick a specific boost from the buy button.
Boost Level Progression[edit]
Boosts use card thresholds:
| Tier | Cards Needed (`currentLevel`) |
|---|---|
| I | 1 |
| II | 4 |
| III | 9 |
| IV | 19 |
| V | 44 |
| VI | 94 |
| VII (max) | 199 |
Notes:
- At 0 cards, the boost is “not owned”.
- Maxing a boost means reaching Tier VII.
Equipping Rules[edit]
- Boosts only work while equipped in a server slot.
- A boost can only be equipped once at a time.
- Equipping a different item in that slot removes the active boost effect.
- Boosts are not consumed on use.
Unlock Requirements[edit]
Each boost belongs to a category:
- Attack
- Defense
- Utility
A boost is selectable only if its category unlock requirement is met (via category download level).
Common unlock pattern:
- Requirement 0: starter boosts
- Requirement 1: mid boosts
- Requirement 2: advanced boosts
What Boosts Affect[edit]
Boosts increase many core stats, including examples like:
- Damage
- Health / Health Regen
- Coins / Bits gain
- Attack Speed
- Defense / Shield
- Crit stats
- Utility effects (Speed Divider, Virus Scanner, etc.)
Most boosts act as multipliers to their matching systems when active.
Practical Tips[edit]
- Keep at least one strong economy boost (Coins/Bits) for scaling.
- Swap to combat boosts when pushing difficult waves.
- Upgrade unlock downloads early so more boosts can appear in rolls.
- Use free/extra slots to keep your best high-tier boosts active.
