Space Defense
Raider squadrons fly two space lanes toward your orbital station. You defend it with energy-powered towers: continuous lasers, homing missiles, burning plasma and a railgun that pierces every ship in a line.
The station has a shield of 5 points that absorbs ships that get through and fully recharges after each wave. On top of that you have two abilities: Shield Overcharge and Orbital Strike. Survive 15 waves and destroy the Dreadnought.
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How to Play
- Choose a tower (1–4) and tap a tile beside either lane. Towers cost Energy.
- Start each wave with N. Ships that reach the station hit the shield first, then the hull.
- Press Q for Shield Overcharge (+6 shield) and W for Orbital Strike (tap a target area for 140 damage).
- Destroyed ships and cleared waves give Energy for upgrades and new towers.
- Keep the hull above zero through all 15 waves.
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 |
| Q / W or the ability buttons | Shield Overcharge / Orbital Strike (then tap a target) |
| 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
- Laser95 energy. A continuous beam that melts single targets.
- Missile Battery110 energy. Homing missiles with splash; range 3.4.
- Plasma Projector70 energy. Sets ships burning; burn damage ignores armor.
- Railgun130 energy. Hits every ship in a line and ignores 60% of armor.
Every tower sells for 70% of everything spent on it. Upgrade costs are shown on the upgrade button.
Enemies
- Scout DroneFast and small.
- FighterStandard raider.
- BomberTough; deals 3 hull damage if it gets through.
- Heavy ShipArmor 6.
- Elite ShipProtected by a 90-point shield.
- Dreadnought (boss)Wave 15. Launches drones, raises shields at 66% and speeds up at 33%.
Strategy Tips
- Place Railguns so their line of fire runs along a straight stretch of lane. Every ship in the line is hit.
- Plasma burn ignores armor, which makes it a cheap answer to Heavy Ships.
- Lasers shine against Elite Ships: many small hits drain a shield quickly because shields have no armor.
- The shield recharges after every wave, so letting one Scout Drone through is free; letting a Bomber through is not.
- Keep Orbital Strike for the Dreadnought's drone swarms, and Shield Overcharge for the moment before the boss reaches the station.
About Space Defense
Space Defense introduces two ideas you will meet in other sci-fi games on the site: a regenerating base shield and enemies with their own shields. Every tower has a distinct attack model (beam, homing splash missile, damage over time and a piercing line shot), so tower choice matters more than tower count.
Ships, lanes and the station are original vector designs drawn at runtime. There are no assets from films or other games.
