Click to playTap to playOnslaught Heights · runs in your browserPlays in landscape · touch controls
Onslaught Heights
Published 7 Nov 2026Hold the heights! A storybook 3D tower defence: build and upgrade towers on cliffs and hills, lead your knight and call down meteors.
Two warbands are climbing to the keep: one up from the valley, one over the gorge bridge. Build towers on the cliffs and hills beside the road and stop them before they reach the gate.
The battlefield is real 3D in a hand-drawn storybook style. Drag to look around, zoom in close to the fighting, and turn the view to see behind the tallest towers. High ground matters: a tower on a hill or a cliff top reaches further.
Four towers, each with three levels and then a choice of two specialties: the Archer (Longbow or Volley), the Mage (Storm spire or Sun orb), Frost (Glacier or Blizzard) and the Cannon (Great bombard or Fire mortar). Sir Rowan, your knight, holds enemies up on the road, and when things get desperate you can drop a meteor or call three militia.
This is an early build with one map, Kestrel Heights.
- Controls
- Keyboard, Touch
- Plays on
- Computers, phones and tablets
- Screen
- Landscape
- Updated
- 7 Nov 2026
- Rated
- General
- Content notes
- Fantasy violence
How to play
Tap a tower card, then a square by the road, to build. Towers on high ground reach further. Tap a tower to upgrade or sell it. Drag to look around, pinch or scroll to zoom, and turn the view with the curved arrow. Keys: 1-4, Q, E, H, N, F, R, Esc.
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