Bastion Vale

A small 3D tower defence made with Doriax Engine.

Alien craft come out of a portal and follow the road to your keep. Build towers on the pads along the way and stop them before they get there, since every craft that reaches the gate knocks points off the keep. Lose all 20 and the level is over. Green Vale has 8 waves and Frost Hollow, which opens once Green Vale is won, has 10 tougher ones in the snow. A win is worth one to three stars, depending on how much of the keep is still standing.

Open the folder in Doriax Editor and press Play on Intro Scene.

Controls

Input	Action
Click a build pad	Select it
1, 2, 3 or the build bar	Build a ballista, cannon or frost tower on the selected pad
U or Upgrade	Upgrade the selected tower (twice at most)
X, Delete or Sell	Sell the selected tower for 60% of what was spent on it
Space, N or Send Now	Call the next wave early, the seconds left on the clock are paid as gold
F or the speed button	Play at double speed
WASD / arrows, right or middle mouse drag	Move the camera
Q / E	Turn the camera
Mouse wheel	Zoom
Esc / P	Pause (Esc first clears the selection)

On phones and tablets, tap a pad to select it, drag with one finger to move the camera and pinch to zoom. The HUD buttons do everything else.

The ballista fires fast at one target, the cannon is slow but hits everything around the impact, and the frost tower does little damage but slows down what it hits. The scouts are quick and weak, raiders sit in the middle, brutes take a lot of shots, and a mothership leads the last waves.

Project

• Intro Scene: the title screen, a raid hovering over the vale with Title Menu as a child scene. The menu shows the stars and best score of each level.
• Green Vale, Frost Hollow: the levels. Each has a Level entity with the LevelDirector script, and uses HUD Scene, Pause Scene, Victory Scene and Defeat Scene as child scenes. The road is the Waypoint entities under Road.
• Loading Scene: shown by SceneManager while a level loads.
• bundles/: the build pad, the three towers, the four enemies and the keep. Towers and enemies are spawned with BundleManager while the game runs.
• scripts/: the Lua scripts. GameState holds what the level and the HUD share, Waves lists each level's waves and Towers the tower prices.
• The ground is a Terrain with painted layers (grass, path, rock, gravel, and snow in Frost Hollow). The muzzle flashes, impacts, explosions, building dust and the torches at the keep gate are particles actions inside the bundles.

Stars and best scores are saved with UserSettings.

Credits

Models, UI, icons, particles, skyboxes and sounds are CC0 assets by Kenney: Tower Defense Kit, Castle Kit, UI Pack - RPG Expansion, Game Icons, Particle Pack, Skyboxes, Interface Sounds, Impact Sounds and Music Jingles. The terrain textures are CC0 from ambientCG. The Lilita One font is under the SIL Open Font License. Licenses are in assets/licenses/.

The tower and enemy icons (renders of the kit models) and the icy colour map of the frost tower were made for this game and are CC0 as well.