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Atari Gravitar
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Jack Hammer is a truck driver with a problem. A guy named Jorge planted a bomb in his head and forces him to work for the Agency which requires him to kill people. Granted, the guys he kills aren't angels themselves but still Jack isn't very fond of working for Jorge so he tries to find a way to get back to him.

The player takes over the role of Jack Hammer or more specifically his truck either in a 3rd-person- or cockpit-view. The truck has the ability to transform itself into to two configurations: combat mode and race mode. In race mode the truck has access to it's boosters, allowing it to speed up fast. Once the player has installed the upgrade, he can also plant mines in race mode. Combat mode instead activates the three weapons systems: main, secondary and melee. By successfully completing the missions and also by earning gold medals, the player unlocks additional upgrades for his truck. These can either enhance his performance like better boosters, change his look or are improvements like a rocket launcher or circular saws on the side for his combat mode.

The game is divided into six episodes with several missions that either advance the storyline or are just there to unlock new upgrades. The missions themselves are roughly divided into twelve game modes although especially the final missions of each episode often combine several game modes into one. Not every game mode let's the player drive his truck though. While there are normal races, in which the player can also use his weapons to get rid of the competition, or arena missions in which only survival counts - in "Transporting" the player for example needs to take a really big truck and get it from point A to B while in "Bomb Car" the player only drives a small vehicle outfitted with a bomb.

The game also features a multiplayer-mode for up to eight players but limited to LAN. In addition the only available game-modes in multiplayer are "Arena" and "Race".


Gear Grinder Windows Bum! Road massacre is fun.
Gear Grinder Windows Trying to get enough momentum for bowling.
Gear Grinder Windows TRATATATATATA!
Gear Grinder Windows The cockpit view is useful in some situations.

Promo Images

Gear Grinder Screenshot
Gear Grinder Screenshot
Gear Grinder Screenshot
Gear Grinder Screenshot

Alternate Titles

  • "Sledge Hammer" -- Russian title
  • "Mad Trucks Racing" -- French title

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User Reviews

There are no reviews for this game.

Critic Reviews

Absolute Games (AG.ru) Windows Apr 27, 2008 80 out of 99 81
Christ Centered Gamer / Christ Centered Game Reviews Windows Mar 05, 2010 74 out of 100 74
GamersGlobal Windows Sep 08, 2009 7 out of 10 70
4Players.de Windows Sep 29, 2009 65 out of 100 65
Out Of Eight Windows Apr 01, 2010 5 out of 8 62
Game Captain Windows Sep 14, 2009 60 out of 100 60
GameStar (Germany) Windows Sep 16, 2009 50 out of 100 50
Gameswelt Windows Oct 02, 2009 49 out of 100 49
Brash Games Windows Jan 26, 2011 3 out of 10 30
Girl Gamers UK Windows Feb 16, 2010 3 Stars3 Stars3 Stars3 Stars3 Stars3 Stars3 Stars3 Stars3 Stars3 Stars 30


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Cancelled Xbox 360 version

An Xbox 360 version was seemingly in the works but was cancelled.

Related Web Sites

Contributed to by firefang9212 (78970) and Sicarius (61508)
atari gravitar