RocketBotRoyale 1.3.9 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The actual developer of this free Mac application is Winterpixel Games Inc. The application lies within Games, more precisely Arcade. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software.
From the developer:
Rocket Bot Royale is an online multiplayer destruction game where the goal is to survive longer than the competition. Wall-climbing, rocket-jumping, artillery-pumping Robo-Tanks are the vehicle of choice in this fast-paced shootout game. You must collect the loot to upgrade your arsenal, tunnel into the terrain to take cover and collect buried treasures, and avoid the rising water levels to be the last one standing.
You may want to check out more software for Mac, such as Mad Skills Motocross, Ballerburg or Pinball, which might be similar to RocketBotRoyale.