Boss Defense
Boss Defense is four short stages, each built around one boss. You get five waves of regular enemies to build up your defense, then the boss arrives with a health bar, phases at 66% and 33%, and attacks announced by red warning markers.
Each boss tests something different: the Bulwark Golem's shields, the Swarm Mother's endless summons, the Storm Wyrm's sudden dashes and the Void Colossus's tower-disabling EMP blasts.
Play Boss Defense
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How to Play
- Choose a stage on the start screen. Stages can be played in any order; cleared stages are marked.
- Build towers (1–5) and survive five waves of regular enemies.
- On wave 6 the boss appears. Watch the boss health bar and its phase markers at 66% and 33%.
- React to warnings: a red arrow means the boss is about to dash; a red circle marks an EMP blast that will disable towers inside it.
- Defeat the boss to clear the stage. A boss that reaches your base costs 12 lives.
Controls
Every action works with touch, mouse or keyboard. Hover is never required.
| Input | Action |
|---|---|
| Tap / click a tower button, then a tile | Build a tower (highlighted tiles are buildable) |
| Tap / click a built tower | Open its panel: upgrade, sell, targeting |
| 1 – 6 | Select a tower type |
| Arrow keys + Enter | Move the map cursor and build or select on that tile |
| N | Start the next wave |
| Space or P | Pause / resume |
| F | Cycle speed: 1×, 2×, 3× |
| U / Delete | Upgrade / sell the selected tower |
| T | Change the selected tower's targeting mode |
| M | Sound on / off |
| Esc | Cancel building or close the tower panel |
Towers
- Bolt Tower50 gold. Balanced damage.
- Cannon80 gold. Splash damage for summoned minions.
- Frost Tower70 gold. Slows; bosses resist half of every slow.
- Lightning Tower100 gold. Chain lightning with double damage to shields.
- Sniper90 gold. Huge hits that ignore half of armor.
Every tower sells for 70% of everything spent on it. Upgrade costs are shown on the upgrade button.
Enemies
- Bulwark GolemStage 1. Armor 5; raises stone shields at 66% and 33% and reinforces them over time.
- Swarm MotherStage 2. Summons swarmlings every few seconds and hatches a brood at 66%.
- Storm WyrmStage 3. Dashes forward at triple speed after a warning arrow.
- Void ColossusStage 4. Fires EMP blasts that switch off towers for 4 seconds, regenerates after 66%.
- MinionsGrunts, Runners, Brutes, Guards, Swarmlings, Warded and Menders.
Strategy Tips
- Against the Bulwark Golem, build Lightning Towers: double damage to shields strips its stone shell quickly.
- The Swarm Mother is a splash-damage test. Two upgraded Cannons near the entry clear swarmlings as they spawn.
- Slow the Storm Wyrm with Frost Towers along long straights. Its dashes cover less ground when it is slowed.
- Spread towers against the Void Colossus. Each EMP blast only covers a circle about 3.4 tiles across.
- Use the five build-up waves to invest in upgrades, not just more towers. Bosses reward concentrated damage.
About Boss Defense
Boss Defense is the showcase for the engine's boss system: phases triggered by health thresholds, abilities on timers, summons, shields, dashes and telegraphed area effects. Every dangerous attack is announced before it lands, so a prepared player can always respond.
The stages are short (about 3–5 minutes each), which makes it easy to retry a boss with a different tower mix.
