Defend Your Treehouse — The core loop from wave one
About
OverviewDefend Your Treehouse! is a tower-defense game where waves of enemies march toward your treehouse and you stop them with rolled turrets, upgrades, and your own sword. This guide walks you through the core loop, how to get stronger turrets, how mutations and events work, and what to do when bosses start showing up in groups.
What is on this page
Contents
The core loop from wave one
Step
You start each world with $200, one roll slot, Luck level 1, and a Wooden Sword. During the tutorial every pull of the Randomizer lever gives a Basic Turret, so fill your plot before the first wave. From there the loop runs in one direction.
- Clear waves kill enemies and finish each wave to collect cash; every kill pays out individually.
- Roll the Randomizer pull the lever to get a turret, then buy any result you want at its listed price.
- Place and upgrade turrets placed turrets deal damage and gain Mastery XP; upgrade them with cash for a flat +10% damage per level.
- Upgrade the treehouse at level 4 the Rich Man appears and lets you travel between worlds; reaching level 9 unlocks the next world.
- Move to a new world Golden World doubles your money, turret damage, and Luck; Crimson World multiplies all three by four.
Roll slots and Luck — where to spend first
Table
Roll slots and Luck both cost cash, so you need to know which one to buy at each stage. Effective Luck is your Luck level multiplied by every active bonus — Super Luck gamepass, server boosts, Index bonus, and the world multiplier.
| Slots 1 → 2 | costs $5K. |
| Slots 2 → 3 | costs $25K; unlocks Bonus Spins, which give a 5% chance per slot of a special prize wheel. |
| Slots 3 → 4 | costs $150K. |
| Slots 4 → 5 | costs $750K. |
| Slots 5 → 6 (max) | costs $2.5M. |
| Luck past effective 150 | every turret's odds have fully leveled off by this point; additional Luck levels change almost nothing. |
Getting mutations onto your turrets
TipsEvery roll has a separate 3% chance to produce a Flame, Electric, or Frozen version of whatever turret comes up; this roll is independent of Luck. If a turret is already placed on your plot when a Thunderstorm, Firestorm, or Snowstorm hits, it can be struck and mutated. A mutated turret shares its Mastery with its base version — Flame Tesla and Tesla both level up the same Tesla Mastery.
- Place your strongest turrets on your plot before a storm starts — only turrets on your plot can be struck.
- Use Flame mutations against single tough targets like bosses; the burn effect adds roughly one full hit of extra damage over time.
- Use Electric mutations against groups — each hit chains 50% of its damage to every enemy within 15 studs of the target.
- Use Frozen mutations on fast enemies — the target moves at 50% speed for 3 seconds, keeping it inside your turrets' range longer.
- The SUPER version of each storm, started by admins, guarantees a mutation strike every 10 seconds instead of just some strikes.
Events and how to use them
Check
Server events rotate automatically on a fixed schedule. One full cycle takes about 65 minutes. Each event runs for 4 minutes, then there is a 9-minute gap before the next one. Token Rush is not part of the rotation — only admins can start it.
- Meteor Shower starts at +0 min walk over meteorites to collect them; 5 meteorites = 1 spin at the Astronaut Shop, with a 1% chance of the Meteor Cannon.
- Thunderstorm starts at +13 min place turrets on your plot beforehand so they can turn Electric.
- Money Rain starts at +26 min walk over falling cash; the SUPER version makes every pickup worth four times as much.
- Firestorm starts at +39 min turrets on your plot can turn Flame.
- Snowstorm starts at +52 min turrets on your plot can turn Frozen.
- Token Rush (admin only) collect tokens that drop near you; 5 tokens spin the Token Wheel, which has a 2.3% chance of a bonus roll slot in normal mode and 6.5% in SUPER.
Daily rewards worth logging in for
SummaryRewards repeat on a 7-day cycle, and each world tracks its own streak. After the first week the cash rewards scale with the cash value of your highest-cleared wave, so they stay useful no matter how far you have progressed. Dynamic turrets like the Volcano Turret do not count as your 'best turret' for the day 5 and day 7 calculations.
- Day 1 $500 in the first week; 5 wave-clears of cash from week 2 onward.
- Day 2 Volcano Turret every week, a dynamic turret.
- Day 3 10 wave-clears of cash.
- Day 4 Garden Scythe every week, a sword that deals 35,000 damage.
- Day 5 Burger Cannon in week 1; after that, either a copy of your best turret or your best sword.
- Day 7 Light Cannon in week 1; later weeks give the next turret above your best, or 100 wave-clears of cash if you already own the top turret.
Bosses and the Boss Slayer bonus
Warn
A boss appears every 15 waves, plus waves 20 and 400. From wave 405 onward, three bosses spawn at once with 1.5 seconds between each arrival. Some boss waves also include minions, meaning you cannot focus all damage on the boss alone.
Mastery, damage, and the Antenna
TipsA turret's damage per shot is its base damage multiplied by its Mastery bonus, its upgrade level, the Antenna buff if in range, your Index damage bonus, and the world multiplier. Each Mastery level adds 10% damage, up to a maximum of level 500. A turret earns Mastery XP whenever an enemy it hit dies, and its Mastery is shared with its mutated versions.
- Place one Antenna per cluster of turrets — the buff does not stack, so a second Antenna on the same group is wasted; cover different groups instead.
- Dynamic turrets (Volcano, Meteor, 8Bit) copy your strongest normal turret, so upgrading that turret automatically strengthens them too.
- Maxing a turret from level 1 to 100 costs roughly 125,000 times its buy price — the last ten levels cost more than all the previous ones combined.
- Complete Index milestones for permanent bonuses: all milestones together give +30% turret damage, +24% cash, and +25% Mastery XP.
- The Boss Slayer Index milestone alone is worth +10% cash permanently — unlock it by defeating every boss at least once.
Glossary
Glossary- Roll slot
- Each slot produces one turret per pull; you can unlock up to six slots, with the third slot unlocking Bonus Spins.
- Effective Luck
- Your Luck level multiplied by all active bonuses — Super Luck gamepass, server boosts, Index bonus, and the world multiplier — which is the actual value the game uses when calculating roll odds.
- Mutation
- A Flame, Electric, or Frozen effect on a turret that adds an extra on-hit ability; each has a 3% chance when rolling, rolled separately from the turret rarity.
- Mastery
- A per-turret and per-sword level that adds +10% damage per level, maxes at 500, and carries over when you move to a new world.
- Dynamic turret
- A turret such as Volcano, Meteor, or 8Bit that copies the stats of your strongest normal turret and updates automatically as you upgrade it.
- Bonus Spin
- A special prize wheel that can appear in place of a turret result once you have three or more roll slots; each slot has a 5% chance to become a Bonus slot.
- Token Wheel
- A prize wheel available during Token Rush that costs 5 tokens per spin and can award roll slots, turrets, Mastery, meteorites, or cash.
- Antenna
- A turret that boosts the damage and fire rate of nearby turrets; the buff does not stack, so one per cluster is all you need.
- Boss Slayer
- An Index milestone earned by defeating every boss at least once, granting a permanent +10% cash bonus.
- Index
- A collection of milestones that reward permanent bonuses to damage, cash, Mastery XP, and Luck for completing various objectives.
- SUPER event
- An enhanced version of a server event that only admins can start, with stronger effects such as guaranteed mutation strikes every 10 seconds during storms.
Common questions
FAQHow far should I upgrade Luck?
Keep spending on Luck until your effective Luck reaches around 150. Past that point each turret's roll odds have essentially stopped improving.
How do I unlock a new world?
Upgrade your treehouse to level 4 and the Rich Man NPC appears, letting you travel between any worlds you have already reached. Upgrading to level 9 unlocks the next world — Golden World first, then Crimson World — each of which doubles or quadruples your money, turret damage, and Luck.
How do I get a mutation on a turret I already own?
Place the turret on your plot before a Thunderstorm, Firestorm, or Snowstorm event starts. Only turrets sitting on your plot can be struck by the storm's lightning, fire, or frost. The SUPER versions of these storms, which admins can trigger, guarantee a mutation hit every 10 seconds.
Cone zombies are killing me — what do I do?
Cone zombies appear from wave 122 and move at 12 studs per second, making them the fastest regular enemy in the game. Place a Frozen turret near the start of the enemy path to halve their speed for 3 seconds at a time.
Does Mastery reset when I move to a new world?
No. Mastery carries across all worlds, so every level you earn stays with you permanently.
What is the Astronaut Shop and how do I use it?
The Astronaut NPC lets you spend meteorites collected during Meteor Shower events or won from the Token Wheel. Every 5 meteorites buy one spin, which has a 40% chance of cash, a 30% chance of a turret one step below your best, a 20% chance of double cash, a 9% chance of a sword upgrade, and a 1% chance of the Meteor Cannon.
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