No revenue estimate for PSN — its rating/review counts don't calibrate to sales the way Steam's do. The Steam version is estimated at $11.2K — a different platform, not this one.
Iron Heart
Amazing tower defense game! Hordes of invaders are emerging from the bowels of the earth to enslave the people of the surface. Follow the resistance of the planet's defenders against an army of steam-powered robots in a rare Victorian-era steampunk atmosphere! Venture through the icy mines and battle in an abandoned underground city. Defend your base by placing towers in tactically advantageous positions and use special skills to defeat the soulless steel army. Each level will take you further into the depths of the planet in search of the source of threat. Your task is to defend your machines from various enemies – some are protected by armor, some fly and others are vulnerable only to electricity. Use tactics to exploit your enemies' weaknesses and achieve victory. Prove your mettle in a storm of fire and steam! 40 levels of varying difficulties! Earn rewards and upgrade your weaponry 12 types of towers and skills! 15+ special enemy characteristics
Ratings
9
read from the US store
Review score
29%
2.9/10 · read from the US store
Prices
Where to buy
The United States storefront in every case, so this compares stores and not countries.
Discounts
What happened when the price fell
Every price cut of more than 20% we have observed, in each market that quoted one, with this game's chart position on either side of it. These are episodes, not a model: a sale is one event, and one event cannot tell you what the next one will do.