Knock Knock: Room Defense – How to Survive Stage 68 Wandering Wraiths

Stage 68 of Knock Knock: Room Defense, often referred to as the Wandering Wraiths level, represents a significant spike in difficulty for players transitioning into the mid-game. The primary challenge here is the relentless pressure applied by ghosts that move with increased speed and target your door defenses in rapid succession.

To clear this stage, you must balance your economic growth with immediate defensive upgrades. Relying on a single line of defense is rarely sufficient; you need to master the timing of your upgrades to survive the incoming waves.

Core Defensive Priorities for Stage 68

Success in this stage depends on your ability to maintain a strong gold income while simultaneously hardening your room against the Wandering Wraiths.

Early Bed Upgrades: Your bed is your primary source of income. Prioritize upgrading it as quickly as the early-game budget allows. If your income is too low, you will not have the capital to repair your door during the intense late-stage attacks.
Door Reinforcement: Do not fall behind on door upgrades. The Wandering Wraiths deal consistent damage; if your door level is too low, you will be forced to spend all your time repairing, which prevents you from building better offensive items.
Strategic Turret Placement: Place your turrets to cover the most vulnerable entry points. Because the ghosts in Stage 68 can be overwhelming, spreading your damage output is more effective than focusing on one spot.

Survival Strategy Table

Phase	Priority Task	Why It Matters
Initial Phase	Maximize Bed Level	Ensures a steady gold stream for mid-to-late game spending.
Mid-Game	Upgrade Door to Tier 3+	Prevents early breakthroughs by faster ghost variants.
High-Pressure	Rotate Repairs	Never let the door reach critical health; repair while gold allows.
Late-Stage	Defensive Utility Items	Use slowing or damage-boosting gadgets to thin the crowd.

Tips for Managing Wandering Wraiths

Don't Panic Repair: It is tempting to spam the repair button, but this can sometimes waste gold if your door health is still manageable. Only repair when the door is under heavy assault to keep your gold reserves high for essential upgrades.
Economic Equilibrium: If you find yourself constantly repairing, your income generation is likely too low. If you are stuck, reset and focus on getting your bed to a higher level before committing to heavy defensive structures.
Prioritize DPS: While the door is your shield, your turrets are your sword. Ensure your turrets are upgraded alongside your door. If you cannot kill the ghosts quickly, they will eventually break through even the strongest doors.

By focusing on a balanced economy and keeping your door health prioritized during the most aggressive ghost waves, you will find Stage 68 much more manageable. Consistently upgrading your bed in the first two minutes is the most reliable way to ensure you have the resources needed to withstand the Wandering Wraiths.