The logo design is clean, classy, elegant and clear... I totally understand why you have stripped to the bare minimum and used the universal KIS (keep It Simple) design rule to eliminate unwanted 'clutter' and additional elements that detract from illuminating the word LOT.
My design attempts the same but keeps the original 'sun shine' optimism of the original LOTTOCOIN logo while cutting back the clutter of too many elements like piles of coins ... like yours it keeps the typography simple and clean.
My only slight concern is that through stripping it back so far it fails to have a personality and is maybe a bit 'too' corporate... my other concern is it is slightly 'funereal' rather than expressing the key brand value of fun and conveying that the coin is 'key' to your fortune.
Take the National Lottery logo for the UK... this is a masterpiece that combines fun and optimism in an instantly recognisable logo... it has personality and cross over appeal that targets the very audience it aims at. There is no other logo like it in the world so the brand is unique. There are many logos that are text in circles (and squares)... as this is an 'easy option' to make a logo clean and readable in the smallest amount of pixel space.
IMHO, putting yours next to the UK National Lottery Logo shows it up to be too plain for the audience the coin is aiming at.
Bitcoin's simple B works perfectly as it reflects currency and the US dollar in its aim was to become an alternative currency. LOT is a coin for playing casino games and having a 'flutter' so there should be an element that conveys /bright future, happy days, fun times, etc
On the plus side it lays down the guideline for showing how clean design and clean type is the way forward as it is readable and scaleable... all important when designing for the web ... I just think the logo as it stands needs an additional 'twist'. Finding the twist that makes it more than clean type in a circle is the reason this excercise is so difficult, and as I have said so many times on this thread, it highlights why big companies spend millions on branding as it is the 'inspirational 'twist' combined with clean scaleable design that makes the difference between a brand that is world class and a logo that is too simple.