Castle Defense Online

Name: Castle Defense Online
Rating: 3.9652174 (25448 reviews)
Author: Black Hammer

Black Hammer

★ 4.0 (25,448 ratings)

⬇ 1,000,000+ downloads

Est. actual: 1,484,413

Style: Strategy

Free

Released: Apr 18, 2020

IAP: $0.99 - $37.99 per item

Contains ads

Rated: Everyone 10+

Mechanics Tower defense 4X / war strategy Platformer & jumpPvP & multiplayer

Signals

4 this week · 2 positive · 1 warning All of this week's signals →

📈Last 7 days +908 installs — 12% slower than the week before (+1K) · 169/day since Sep 21
🏆Among Strategy games top 18% by installs gained this week (10585 peers growing)
⭐Rating steady at ★ 3.97 since Sep 21
🛠Updates actively updated · updated 3 days ago · every ~15 days (5 updates tracked)

Installs since launch

+8,809 installs · +116 ratings since Sep 21

SDKs in the app · version 2599, analysed Oct 20, 2026

Ad networkGoogle Mobile Ads (AdMob) 24.5.0 Unity Ads 4.4.2
AnalyticsFirebase Analytics 23.0.0
ConsentGoogle User Messaging Platform 3.2.0
Engagement & messagingPlay In-App Review 2.0.0
Game engineUnity (engine)
Game servicesPlay Games Services 17.0.0
PaymentsPlay Billing Library 8.3.0
PlatformPlay In-App Updates 2.1.0

Found by static analysis of the app package; bundled is not the same as active. All SDKs →

Update history

2618 Nov 9, 2026

2026-11-10 Other bug fixes

2617 Nov 6, 2026 · seen Nov 9, 2026

2026-11-07 Other bug fixes

2613 Nov 4, 2026

2026-11-05 Other bug fixes

2599 Oct 12, 2026 · seen Oct 16, 2026

2026-10-13 Other bug fixes

2577 Sep 8, 2026 · seen Sep 21, 2026

2026-09-10 Other bug fixes

Trailer

Castle Defense Online is a strategy game by Black Hammer with 1,000,000+ downloads (about 1.5M estimated). +908 installs in the last 7 days. Rated 4.0 from 25K ratings. Released Apr 18, 2020. Install growth, rank history, SDKs and ad networks.

From the store listing: “Join the Ultimate Tower Defense Adventure! The world's first real-time 4-player multiplayer defense game! Castle Defense Online! Castle Defense Online offers an exciting and strategic experience where 4 players can play together in real-time, defending your base from waves of enemies. Whether you're a fan of tower…”