Namibia had received the toss and restricted Scotland to 109-8 of their 20 overs.
Michael Leask was the highest scorer for Scotland with 44 from 27 deliveries. His knock included 4 boundaries in two sixes.
Chris Greaves made 32-ball 25 with two fours to his title.
Ruben Trumpelmann was the decide of the bowlers together with his figures of 3-17 whereas Jan Frylinck received two wickets.
In reply, they chased the 110-run goal in 19.1 overs on the lack of six wickets.
Johannes Jonathan Smit top-scored with 32 not out from 23 balls with two boundaries and as many sixes. Opener Craig Williams hit a six on his strategy to 29-ball 23.
Michael Leask bagged two wickets within the sport whereas Brad Wheal, Safyaan Sharif, Chris Greaves and Mark Watt received a wicket every.