It is not a slot room and there is nothing to unlock. The Lounge is where DoubleDown Casino sells chips.
What it is for
The Lounge is the chip purchase page. Players who want to top up their balance with a purchase do it there, and that is the whole job it does.
Chips bought there are the same chips you get free from the Daily Wheel, the Time Bonus and promo codes. They are play money either way. Bought or free, they never convert to cash, prizes or goods, and they cannot be transferred or sold.
Purchases do feed Diamond Club, DoubleDown's free loyalty program. Loyalty Points come from chip purchases, and points move you up the tier colors. That is how the program is built, and it is worth understanding simply so the tiers make sense.
Nobody has to buy anything
This is the important part. DoubleDown Casino is free to play, and it stays free to play.
You start with 1,000,000 chips. The Daily Wheel gives a free spin every day. The Time Bonus refills on its own. Promo codes go out constantly by email, notification and social media, and we post every one of them. A player who never visits the Lounge at all is playing a complete game.
If you do choose to buy chips, treat it as spending on entertainment rather than anything else. Chips have no cash value, so a purchase is never an investment and can never be cashed out. Your own budget is the only rule that matters, and skipping the Lounge entirely costs you nothing but a smaller pile of pretend money.
Separately, some accounts have a feature called Path to Prestige on their Buy Chips page, worth 100,000 free chips and resetting every Monday. Not every account has it, so have a look. If it is there, it is free.
If the Lounge will not load
Some players have found the Lounge simply refuses to load, even after clearing cache and cookies as support suggested.
That one is on DoubleDown's side, not yours, and it is not something we can fix from here. Open a ticket at https://support.doubledowncasino.com/hc/en-us/requests/new, say what happens and what you have already tried, and let them look at it.
The Lounge is optional. The free chips are not going anywhere, and today's are waiting at https://www.ddpcshares.com/double_down_c ... tion_codes