I am getting many very creative, very simple and elegant designs. Thank you everyone!

I have enough versions of letter D, now I want something else. Something more nerdy. Maybe from the games? like "next level", "level up". or something around setting a goal and going/working on it. climbing the stairs or just a stairs.

But remember: simple & elegant, just 1 color & the logo should be understandable standing alone as well.

Have a look at
revised logo Design #27319535
hope you like our take on the design for you.

Design #27322078 & #27319536
any changes please feedback sir.