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Tank Fortress: Idle Merge TD

Name: Tank Fortress: Idle Merge TD
Author: BOXI Interactive

1.4.3

Play Protect

BOXI Interactive

4.2450K+ installs

Download APK

Build the ultimate mobile fortress. Merge turrets and survive the ruins!

Tank Fortress: Idle Merge TD, a merge tower defense game

By Mei-Lin Chua

Contributing editor, apps and storefronts

Merge turrets into stronger weapons as the fortress grows
Unlock new turret slots as the mobile base expands
Base growth that continues while the game is closed
Real-time pathfinding and adaptive difficulty for enemy waves
Online arena battles with a global leaderboard and ranking events

Merge tower defense in a ruined world

Tank Fortress: Idle Merge TD is a tower defense game in which you are the last commander left against rogue machines. You place and merge turrets on a mobile fortress, then defend it against waves of enemies. The battles take place across deserts, jungles and frozen ruins.

The game sits in the Strategy category and mixes idle progression with tower defense. Most of the work is deciding where turrets go and which ones to combine.

Growing the fortress and merging turrets

What's new

Oct 3, 2026

• New Titan: Insect Queen
• Anniversary event starts Oct 1 and lasts one month
• Party Carnival
• Double dungeon rewards
• Limited-time 30% off in-game packs
• Discount packs now include selectable Titans and Pilots

About this APK

The build we hold is Tank Fortress: Idle Merge TD 1.4.3 (APKS split bundle) for Android 8.0 and up.

Version: 1.4.3; 1790770128
Requires Android: 8.0+
Target Android: 16

Package ID: com.lemix.tankfortress
Format: APKS split bundle
Malware scan: Google Play Protect
Permissions: 19 declared · 2 sensitive; Approximate location
Precise location
Signed by: CN=Android, O=Google Inc.
Certificate SHA-256: 89187ff1d323ce404078e41ce51e7d79140069d8e219f6acf3319f54c286c389