Classic · Prophetic Sky · 2009 · Out now on Steam

Knights vs
Aliens.

Defend Medieval Europe from an alien invasion historians agree definitely happened. Originally an iPad game from 2009, shipped under my old studio Prophetic Sky; rebuilt in Godot and out now, free on Steam. Still the same weird little real-time tower game.

Play free on Steam → How it works →
Knights vs Aliens main menu — a knight and an alien face off across a forest battlefield. CLASSIC · 2009 · REBUILT 2026
Genre
Real-Time Strategy · Tower Conquest
Original release
2009 · iPad · Prophetic Sky
Released
July 16, 2026 · Out now · Free
Platforms
Steam · Windows · macOS · Linux
Players
1 · Single-Player
Engine
Godot 4.6 (rebuilt)
System
Anything that can outcompute a 2009 iPad
Price
Free · always
How it works

One rule, eight armies:
kill anything green.

01 / FEATURE

Drag-to-attack combat

Every tower generates units over time. Drag from a friendly tower to an enemy one to send a squad.

02 / FEATURE

Eight playable nations

Five angry European nations — or mind-control the aliens and conquer Earth yourself, for science.

03 / FEATURE

Thirty campaign levels

Three difficulty settings and a dynamic AI that notices when you're doing too well and becomes professionally upset.

04 / FEATURE

Environmental modifiers

Fog of war. Darkness. Sunset battles. Three conditions famously solved by panic.

05 / FEATURE

Also: bears

Don't let the world get eaten by bears. Unlocked the hard way, deployed at your own risk — bears are notoriously reluctant to follow orders.

06 / FEATURE

Nine hidden cheat modes

Nine unlockable modifiers earned through the campaign. Ethical deployment under advice of counsel is recommended.

Captures

From the field.

Campaign battle — squads streaming between towers across a forest map, attack lines mid-flight. SHOT 01 · CAMPAIGN
Winter map — blue armies holding towers across snow and rock. SHOT 02 · WINTER FRONT
Dark-mode battle — lantern-lit squads advancing through blacked-out terrain. SHOT 03 · DARK MODE
Alien nation swarming a King of the Hill map in purple and green. SHOT 04 · ALIENS
Bears loose on a maze map of stone paths and towers. SHOT 05 · ALSO: BEARS
Main menu — knight and alien face off. To battle. SHOT 06 · TO BATTLE

A small thing, kept alive. Free forever.

Out now on Steam, free forever, because Medieval Europe has suffered enough. Released July 16, 2026. For what Eastbridge is building next, see Animus: Convergence — the first of the Animus titles.

Play free on Steam → Back to games →
Caution: may cause fingers to break off and/or melt · consult next of kin before use