Build strength, one merge at a time

Iron Gym Rival is a casual gym-themed merge and idle game. Bring matching fighters together to unlock stronger athletes, collect the coins they earn while training, and decide where to invest in your growing lineup.

Make the gym work for you

Improve fighter arrivals, develop your boxers, and increase training income. Manage the space on your gym floor, look for useful matches, and turn steady earnings into your next upgrade. Browse your fighter collection as your roster develops.

Step into the ring

Take your strongest fighter into boxing matches against increasingly powerful rivals. Watch the action unfold, then use the battle boost to help your boxer push ahead. Victories feed back into the gym so there is always another reason to train.

Play at your own pace

Use the mouse to arrange fighters and navigate the gym, with keyboard shortcuts for upgrades and battle actions. Adjust music and sound separately, continue from your local save, and work toward Steam achievements as you merge, improve, and compete.

• Merge matching fighters into stronger athletes.
  
• Balance gym space, upgrades, and training income.
  
• Build a fighter collection and challenge boxing rivals.
  
• Enjoy a compact single-player progression loop with mouse and keyboard controls.