The logo on the dice is the [Shadowrun][1] logo. Those dice are for the Shadowrun RPG.

The game itself uses a result of 5 or 6 as a "hit", a result of 2 to 4 as a "nothing" and a result of 1 as a "glitch", which is consistent with how your dice are marked (shadowrun logo means "hit", nothing at all means "glitch", but 5 of the 6 numbers are still there in case you need regular six-sided dice.)


  [1]: https://en.wikipedia.org/wiki/Shadowrun#mechanics