Factory Legacy: Idle Empire
Grow a small workshop into a factory empire across five eras
- Android
- iOS
Build brass towers beside the lane, hold the keep and break every wave
Tower Vanguard is a hand-crafted tower defense game by Rui Codex for Android. Players build brass towers on the tiles beside the lane, call the waves when ready and hold the keep with Captain Rook against the creeping Gloam across 24 maps. It plays offline without an account and is free, with ads kept away from battles and optional in-app purchases.
Scroll sideways or use the arrow keys.
Arrow, cannon, frost, tesla, sniper and beacon, each with two specialisations.
New lane layouts, new Gloam creatures and a boss at the end of every region.
Frost slows and weakens, beacons power up their neighbours and early waves pay extra gold.
Daily missions, the Daily Siege, a weekly operation and the Endless Rift.
Three stars per map, Heroic crowns, commander ranks, tower mastery and an enemy codex.
Every map, mode and tower is free, and no purchase ever wins a map for you.
Plays without a connection, keeps progress on your device and speaks nine languages.
Each map is a lane that the Gloam follows towards the keep. Build on the tiles beside it, call the next wave when you are ready and hold the line with Captain Rook. Calling a wave early pays extra gold, so every wave is a trade between safety and speed.
Six towers - arrow, cannon, frost, tesla, sniper and beacon - change as they grow, and each offers two specialisations to choose between. The real strength is in combinations: frost slows and weakens enemies, and beacons power up their neighbours. Four regions hold 24 maps with new lane layouts and new Gloam creatures, and a boss waits at the end of every region.
Each map has three stars to earn, and Heroic crowns, commander ranks, tower mastery and a codex of every enemy you meet keep long-term progress going. Daily missions, the Daily Siege, a weekly operation and the Endless Rift give a fresh goal every day. Every map, mode and tower is free; ads are kept away from battles, and the optional Vanguard Pass, themes and core packs are about comfort and looks, never about winning a map for you.
Tower defense fans who like planning a build and testing it against boss waves, and players who want a strategy game that is fair to play for free.
Watch the trailer
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We design, build and publish our own apps with the same engineering we put into client software.
Built in Flutter (Dart) with a battle simulation in pure Dart that reads every balance number from one data file, so the rules run headless in tests and simulations. Progress is stored locally in SQLite, ads run through Google AdMob and purchases through Google Play Billing, and usage analytics go to a PostHog server that Rui Codex runs on its own infrastructure and can be switched off in Settings.
Yes. Every map, mode and tower is free to play. The optional Vanguard Pass, themes and core packs are about comfort and looks and never win a map for you.
Yes, through Google AdMob, but ads are kept away from your battles. No reward is ever given for a store rating.
Yes. It plays without a connection, needs no account and keeps your progress on your device.
There are 24 maps across four regions, each with three stars to earn and a boss at the end of every region, plus the Daily Siege, a weekly operation and the Endless Rift.
Not at the moment. Tower Vanguard is published on Google Play for Android phones and tablets; there is no App Store version yet.
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Rui Codex builds mobile apps, web platforms and integrations for businesses in Belgium and across the EU.
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