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Introducing a perfect all around boat, The 645 21’ Game King hits home for family fun, water sports and fishing. At 3,968 lbs this boat is super easy to trailer without the headache of a truck. The weight includes boat, motor and trailer.  A nice wide beam of 8’2” leads to all the attributes of all Extreme Boats (safety, performance and stability). The 645 (21’2”) Game King comes standard with a 5mm hull thickness, flooded keel, nice reverse chines, trim tabs, and much more. Recommended power plant is 150-200hp leaving you with speeds in the upper 40s.


21' Length


8' Beam


3968lbs Towing 


Max Capacity 


200 HP

Max HP


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The Extreme Boats Game King Range are all aluminum hard top boats built to exacting standards. This tough and versatile platform is perfect for big adventures. The Game King is perfectly suited for not only serious off-shore fishing trips buts overnight weekend excursions as well as family fun skiing at the lake. With the choice of a fully enclosed cabin you can extend your season at just about any latitude.



Extreme boats innovation can be experienced with its outstanding stability. This is achieved by design with a self flooding keel and the large reverse chine design built into every Extreme Boat. The self flooding keel enables a large volume of water to enter the central V of the hull adding extra weight down low when at rest. This adds a huge amount of stability, and combined with a wide beam and large reverse chines ensures your fishing platform is a very stable one! When underway, the self flooding keel will rapidly empty to ensure you are not carrying that extra weight around saving fuel.


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The Extreme Boats Game King is available in the following models: 616, 645, 695, 745, 795, 885, 915, 985 and 1185. All Extreme Boats can be outfitted to your exact specifications. From color to transom and cabin layouts, you decide how your dream boat designed. It’s up to you to decide which best fits your next adventure. Contact us to get started.