Smeltline
Philipp Stremel Games iPhoneiPadiPod touch
Smeltline is a free Games app for iPhone and iPad by Philipp Stremel. Requires iOS 15.0. Updated October 20, 2026.
- Price
- Free
- on the App Store
- Size
- 271 MB
- Age 4+
- Updated
- Oct 20
- 2026 · v1.0.0
Screenshots
About Smeltline
Your homeworld has run out of resources. As an engineer, you land on an untouched planet with a single task: build a factory that runs by itself, and construct the rocket that can save your home. But you are not alone. Nearby, the young colony of Weitmark is struggling to survive and asks for help. Send it supply capsules and watch a few huts grow into a town. In the end, the rocket can fly to only one destination. Who will you help? AUTOMATE • Drills, smelters, formers, joiners and synthesizers chain into long production lines, from the first ore to rocket segments • Conveyors, pipes for water and oil, tunnels and splitters: drag your lines with a finger • Drones carry cargo across rivers, lava and crevasses to distant deposits • Every machine has a throttle, and boost modules push it even further POWER • Wind, sun, geothermal, coal, oil and nuclear • Day and night, with batteries as a buffer: when power runs short, the factory slows down instead of stopping FOUR WORLDS • Grassland, Volcanic Land, Ice World and Desert share the same resources, but each has its own bottleneck: a river, lava flows, crevasses or scarce water • Salvage wrecks for data cores that unlock research and alternate recipes MADE FOR MOBILE • Your factory keeps working while you are away, and a summary shows what came in • Built for touch in landscape, on iPhone and iPad • Detailed pixel art and painted story scenes • Achievements across all your games • Progress saved via iCloud • Playable in 9 languages Play the beginning, then unlock the whole game with a single in-app purchase. No ads, no subscription.
Play today's Frostfire puzzle
Balance fire and ice: half of each in every row and column. A free daily puzzle from Fiplay, same board for everyone. It plays right here, no download.
App privacy
The developer, Philipp Stremel, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to Smeltline
Looking for apps like Smeltline? Here are 6 similar apps on the App Store. The highest rated is Command Chain (5.0/5), and 5 of the 6 are free to download.
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Smeltline | – | Free | October 20, 2026 | |
| Command Chain | 5.0 / 5 (3) | Free | Aug 19, 2026 | Compare |
| The Process: Foundry | – | Free | Aug 6, 2026 | Compare |
| Tower Truck: Zombie Siege | – | Free | Oct 16, 2026 | Compare |
| The Kardashev Initiative | – | 4.99 USD | Jul 17, 2026 | Compare |
| My Empire: Expand and Conquer | 3.9 / 5 (8) | Free | Oct 10, 2026 | Compare |
| Hooman Invaders Tower Defense | 4.0 / 5 (7) | Free | Feb 27, 2024 | Compare |
Compare Smeltline with the top alternatives: ratings, updates, ASO score and keyword gaps →