601 Main Street | 800-847-2522 | Mineral Palace Website

Mineral Palace opened in March 1993 on Main Street in downtown Deadwood.  It is on the location of what was known as the Gem Theatre.  The Gem Theatre was not a theatre at all.  It was a brothel run by Deadwood legend Al Swearengen.

The Mineral Palace offers a restaurant, hotel and casino. There are slots, video poker, video roulette, blackjack and Three Card Poker spread in the casino.

Table Games

Mineral Palace offers double deck blackjack, six-deck blackjack, double zero roulette, Ultimate Texas Hold’em and Three Card Poker.  There are two Three Card Poker games, four six-deck blackjack games and one roulette table.

In the six-deck blackjack game, players can double after the split, double anything and split up to four hands.  The dealer hits soft 17. The double deck blackjack game has the same rules, except that double down after splitting is not permitted. All games have limits of $5 to $100. Players that enter a game mid-shoe may only bet the minimum.

There is a video roulette machine. This game has limits if $1 to $100. The game accepts a players card. The roulette wheel has two zeros.

Mineral Palace Video Poker

Mineral Palace ranks among the worst video poker in Deadwood.  The best video poker game is 6/5 Double Double Bonus Poker Plus (95.1%).  Other video poker offered include 6/5 Jacks or Better (95%), 10/8/5 Bonus Poker (94.18%), 7/5 Double Bonus (93.1%), 6/5 Double Double Bonus (94.65%), 15/10 Deuces Wild (94.82%), 6/5 Joker Poker (94.27%), 6/5 Triple Double Bonus (93.86%), 7/5 Blackjack Poker (94.9%), One Eyed Jacks (94.9%), 9/6/5 Shockwave Poker (93.2%) and Wild 7’s (94.85%).

The denominations are penny, nickel, quarter, half-dollar and dollar.  The pay tables are the same on all machines for all denominations.

Player’s Club

The player’s club gives players 0.4% cash back for their play.  Points may be redeemed for free slot play right on the video poker machines by entering your PIN.  Free slot play is also given to active players on a monthly basis.


A variety of promotions are mailed to active players that are specific to their action. Players 55 and older earn entries Monday through Thursday for a chance to win $500 in free slot play. Every 300 points earned in a 24-hour period receives one entry to this drawing.

Mineral Palace Hotel

Renovated in 2011, the hotel offers 75 rooms for their guests to choose. Amenities include free Wi-Fi, room service, free onsite and valet parking.

Guest rooms include coffee maker, hairdryer and TV. Standard rooms are available with a single king or two queens. Smoking rooms are available. The double queen starts at $65 off-peak up to $149 during the summer for weeknights. Weekend nights start around $95 during the offseason and $149 during summer.

Three suite trims are available. The King Suite offers extra room and a refrigerator. The Royal Suite upgrades include in-room jacuzzi, terry cloth robes, refrigerator and fireplace. The VIP Suites are accessible from a private elevator. These suites feature in-room jacuzzi, terry cloth robes, refrigerator and sleeper sofa. Some VIP suites are available with a balcony and fireplace. The suites start around $265 off season and around $389 during the peak season.

Gem Steakhouse

The Gem Steakhouse offers a variety of steak, buffalo, chicken, fish, burgers and salads.  Steaks are aged a minimum of 21 days. A full bar is offered.

Gem Steakhouse is open for breakfast, lunch and dinner. The breakfast menu is like a café. Most breakfast items are under $10. Lunch includes appetizers, salads, sandwiches, burgers and some entrees from the dinner menu.