1. The Pen (Idle Income Facility)
- Function: Holds your saved hybrids. Each active hybrid displays a green float label above its head showing its $/s earning rate.
- Capacity Limits: Your starter pen holds only a limited number of hybrids. Once full, newly fused creatures cannot roam or produce cash.
- Upgrades: Upgrading the pen increases maximum capacity. Prioritize pen upgrades whenever you create higher-tier hybrids that cannot fit into your current enclosure.
2. The Treadmill (Combat Leveling Facility)
- Function: Increases creature combat level. When you place a creature on the treadmill, it begins running and generates XP every second (visible as floating
+XPnotifications). - Leveling Curve: Levels increase your hybrid's Max HP and attack damage, which are critical for passing recommended level checks in The Wild.
- Upgrades: Upgrading the treadmill increases the base XP awarded per step, dramatically cutting down the time required to prepare for zones like Jungle (Lv. 4,250).
What Not to Buy First
- Do Not Buy Instant Cash Packs Early: Early cash packs offer fixed sums that become obsolete once you deploy 8★+ hybrids. Reinvest idle cash into pen capacity first.
- Evict Before Upgrading: Before spending cash on pen expansion, make sure you have already sold or removed $1/s starters.