D.I.P.R.I.P. is a Half-Life 2 multiplayer total conversion. Gameplay is based on vehicle combat in various post-war environments. Vehicles use multiple weapon mounts which are activated by finding weapons scattered around the battlegrounds. Key locations in the post-war world are rich in uncontaminated water and fuel. Most of the terrain has been left in a mechanically unchanged state. Abandoned city centers, malls, refineries, country food storages, old military bases and other such places are the scenery of raging battles.

Key gameplay features:

• Varied vehicles
  
• Multiple weapons
  
• Destructible environments
  
• Arcade controls
  
• Lots of explosions

https://store.steampowered.com/app/780310/The_Riftbreaker/
https://store.steampowered.com/app/408410/XMorph_Defense/
https://store.steampowered.com/app/220820/Zombie_Driver_HD/