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Astral Defense

A space-themed defense game, taken all the way to the Play Store — backend, analytics, releases and all.

Play Store ↗ Privacy Policy

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Hold the line

Astral Defense is a sci-fi tower defense game for Android. The Void Collective is invading across the stars, and you hold the line by building and upgrading a roster of towers along the path.

How it works

01

Main menu

The hub — jump into the campaign, pick a level, check the global rankings, or visit the store.

Main menu
02

Core gameplay

Place and upgrade towers along the glowing energy paths to stop waves of the Void Collective, while a live-stats panel tracks gold, lives, wave, score, and efficiency in real time.

Core gameplay
03

Tower upgrades

Every tower has three upgrade tracks — the Arc Cannon can specialize into Overdrive for damage, Long Rail for range, or EMP Rounds for slows — or be sold back for a 75% refund.

Tower upgrades
04

Power items

Spend gems mid-run to swing a wave: a small gold cache, a shield that absorbs the next leak, or relocating a placed tower without losing its level.

Power items
05

Sector select

Campaign levels unlock as you progress, each scored up to three stars with a personal best to beat.

Sector select
06

Global rankings

A live, season-based leaderboard powered by Supabase, ranking real players by score across this season and past ones.

Global rankings
07

Daily & weekly challenges

Rotating goals — like clearing to wave 9 with only basic towers — that pay out gems and scale their rewards with your player level.

Daily & weekly challenges
08

Astral Store

Optional gem packs for boosters, continues, and shields. Everything's still grindable — purchases are a shortcut, not a wall.

Astral Store

Gallery

Tesla Coil — chains lightning between enemies
Tesla Coil — chains lightning between enemies
Frost Spire — slows everything in range
Frost Spire — slows everything in range
Arc Cannon — heavy single-target damage
Arc Cannon — heavy single-target damage
Vortex Sniper — long-range precision
Vortex Sniper — long-range precision
Core Colossus — a late-wave boss
Core Colossus — a late-wave boss
Vortex Brute — fast and armored
Vortex Brute — fast and armored

About the build

Astral Defense is the project that taught me the unglamorous half of shipping: the backend, the release pipeline, store compliance, and listening to real telemetry instead of guessing.

The game loop is deliberately simple to pick up and hard to master. Everything around it — the leaderboard, analytics, crash and bug reporting — exists so that every update is informed by how people actually play, not how I imagine they do.

More detailed build notes will land on the blog as I write them up.

Looking for data & privacy details? Read the Astral Defense privacy policy.