STAR BASTION — 3D space turret defense in your browser
STAR BASTION is a free single-player 3D space shooter and turret defense game. Man a carrier’s turret, track enemy fighters, and hold off capital ships. Play in your browser without installing a game or creating an account.
In 2187, the alien Xenarch emerge from a rift beyond Neptune. You are Guardian 1, a turret gunner aboard the UEDF carrier Bastion. Defend the fleet and Earth in Part 1, then take the counterattack through the rift in Part 2.
Missions and progression
- 20 story missions across two chapters: defense, recon, escort, rescue, supply raids, and boss battles.
- Six weapons, starting with the mass driver, plus EMP Nova to counter nearby enemies and torpedoes.
- Earn credits from mission scores to unlock weapons and upgrade hull, shields, targeting, and other ship systems in the hangar.
- Endless Defense challenges your survival time and score against enemy waves. Unlock it as you progress through the campaign.
- English, Korean, and Japanese menus, tutorials, mission dialogue, and objectives.
- Mouse and keyboard on PC, with on-screen touch controls for phones and tablets.
Weapons
- MD-2 Mass Driver
- FK-9 Flak Cannon
- Hornet Homing Missiles
- LX-4 Beam Laser
- RG-X Railgun
- SC-9 Siege Cannon
- EMP Nova
How to play
| Input | Action |
|---|---|
| Mouse / WASD / Arrow keys | Aim the turret. Hold Shift for slower, precise keyboard aiming. |
| Left click / Space / J | Fire. Hold to charge the railgun or siege cannon, then release to shoot. |
| Hold right click / Hold Z | Optical zoom. Change magnification with the wheel while zoomed, or with C. |
| 1–6 / Q, E / Wheel | Select or cycle weapons. The wheel adjusts magnification while zoomed. |
| T / R | Select a target near the crosshair / next target. T prioritizes incoming torpedoes. |
| F / EMP button | Use EMP Nova once unlocked to counter nearby enemies and torpedoes. |
| Esc / P | Pause. Settings and control instructions are available from the pause menu. |
| Touch screen | Drag on the left to aim. Use the right-side Fire, Zoom, Weapon, Target, EMP, and Pause buttons. |
The yellow diamond (◇) is the lead marker, accounting for projectile travel time. Aim ahead of a moving enemy at that marker. Pink ◆ markers are plasma torpedoes; intercept them before they reach a ship.
Frequently asked questions
- Is it free? Do I need to install anything or register?
- The game is free and requires no installation or account. You need a browser that supports JavaScript and WebGL2.
- Which devices can I play on?
- PC mouse and keyboard and phone or tablet touch controls are supported. Landscape is recommended for phone combat; tablets can use either orientation. Adjust graphics quality in Settings to suit your device.
- Where is progress saved?
- Mission records, credits, unlocks, upgrades, and settings are stored in the current browser’s localStorage. Clearing browser data or switching browsers or devices does not automatically carry that progress over.
- How many weapons are there?
- There are six: mass driver, flak cannon, homing missiles, beam laser, railgun, and siege cannon. EMP Nova is a separate special weapon. Credits and campaign progress unlock and improve your equipment.
- How do Campaign and Endless Defense differ?
- Campaign tells a story through 20 missions in two chapters. Endless Defense tests survival time and score against enemy waves, and unlocks as you progress through the campaign.
- Will changing language erase my progress?
- No. All three languages share the same game save on this site. Choose a language on the start screen or main menu; the choice is remembered. The selector is hidden during an active mission.