[Android, iOS] Iron Marines $1.49 (Was $4.29) @ Google Play / Apple App Store

Actually quite a fun game, can be played offline.
4.7 Stars on android.

Also available on Apple appstore
https://apps.apple.com/au/app/iron-marines-rts-offline-game/…

FEATURES
• 21 CAMPAIGN MISSIONS across three scifi planets. Each challenge will make you improve your strategy to save the galaxy!
• 17 SPECIAL OPERATIONS will test if you have what it takes to battle your way as a space marine.
• 40+ UPGRADES to build the ultimate RTS army! Choose between Defense Drones, Napalm Rockets, Ricocheting Blasts, Lethal Weapons and many more.
• +7 UNITS to bring into battle and give your hero some extra firepower!
• 8 SPECIAL WEAPONS to unleash hell on your enemies! What’s better than a well-placed missile? An orbital strike of 50 high-explosive missiles!
• DEFEAT UNIQUE BOSSES in epic battles. They are green, mean, killing machines!!! Well… some are machines and these aliens aren’t green… but they’re all massive and determined to crush you. Suit up, Marines!
• 70+ ACHIEVEMENTS to complete and show everyone you’re the best RTS commander in the galaxy!

THE FULL RTS STRATEGY GAME OFFLINE EXPERIENCE