Blindfold Jeopardy

When I created the first survey asking people what game to build next, Jeopardy was one of the most demanded games.


Like other games, Jeopardy is protected with a copyright, so I had to modify the game rules and questions to not infringe on their intellectual property.  Based on suggestions from the testers, they chose “Trivia Match” as the Blindfold game name.

In Trivia Match, the game board is laid out as 6 columns of categories, with each column containing 5 clues.  You first pick the clue you want based on the category and amount of money, and then the select your answer.  If your answer is correct, you win the money.  If your answer is wrong, you lose that money.

In the TV game Jeopardy, the game board has clues, and you must speak your answer as a question.  Trying to validate what someone types for their answer is a very complex programming task; instead, in Trivia Match, you must select the correct answer out of 10 possible answers.  All possible answers appear relevant to the question, so guessing doesn’t help much.

There are several companies that sell trivia questions and answers, but very few that sell trivia questions with both right and wrong answers.  We needed a way to come up with wrong answers.

To solve this, we found a company that divided their trivia into categories.  To come up with the 10 possible answers, we would randomly select the correct answers from 9 other questions in the same category, and the include those answers with the correct answer from the actual question.

For example, if the clue is “What you are supposed to hold when you keep your big mouth shut”, the category is “body parts”.  By analyzing all of the  questions in the body parts category, we generated answers such as: chest, head, nose, liver, calf, tongue, belly, and ear.

We first tested the game with about 7 answers for each question, but found at least 10 answers are needed to make the game sufficiently challenging.

You can download Blindfold Trivia Match here:



Blindfold Racer Out-takes

People who follow this blog may have heard these before, but I just listened again and couldn’t stop laughing.

Jim Holiday does a podcast called Typical Confusion, and he recently tried Blindfold Racer.  While his driving wasn’t very good, he really enjoyed my daughter’s voice acting from 4 years ago.  He said she has lots of fans.

Jim asked me for the out-takes to include in his latest podcast.  He starts talking about Blindfold Racer at 17 minutes and 8 seconds, and the out-takes begin at 18 minutes and 48 seconds.

Here’s the link to his podcast on Audioboom:



Blindfold Hopper workout

I was corresponding with a game fan last week, and she was telling me how she plays Blindfold Hopper, but sometimes has trouble:

“If I move my arm too far away from my body, there’s a chance my shoulder could pop out of place. Not only is that horribly painful, but I’d rather not be put in the position of telling emergency room staff that I dislocated my shoulder playing a game on my phone.”

person in spinning chair

I told her that some people play by sitting in a rotating chair, and using their feet, they swing their body back and forth.  She replied: “Oh my goodness. Playing in a rotating chair would be so much fun. I’ll definitely do that.

Keeping your feet on the ground and swinging your body left and right is not only a fun way to play, it’s a good workout of your core muscles.  The machine used in pilates called a pilates reformer can be used to exercise your abdominal muscles in a similar fashion.

Blindfold Hopper – the game she was referring to – is a similar to the old video game Frogger.

In Hopper, you are a frog sitting on a lily pad, and you need to jump to the next lily pad. Using head phones or ear buds, you hear the lily pads move from one side of your head to the other. Each lily pad is represented by a different musical loop. When the lily pad is directly in front of you, tap the phone to jump to the next lily pad.

You can move your lily pad left and right by swinging your arm or rotating your body, and you can jump to a lily pad in front of you, or behind you. Each time you jump, the next lily pad comes a little bit faster. And if you stay on your lily pad too long, an alligator will eat you.


To download Blindfold Hopper:



Blindfold Skip-Bo

Skip-Bo was originally created by Minnie Hazel “Skip” Bowman in 1967, and was commericialized by Mattel.  There are two other names for this game:  Spite and Malice, and Cat and Mouse.  We published the Blindfold version as Blindfold Cat and Mouse Solitaire.

Skip-Bo piles and cards

Trying to get a good name for this game wasn’t easy.  Like all games that are copyrighted by a large gaming company, I cannot use the copyrighted name, and I must make sufficient game changes to not violate any intellectual property associated with the commercial game.

I first published the game as Blindfold Spite and Malice, based on the original name, and fewer than 100 people downloaded the game.  Everyone was expecting a game based on revenge.  I guess revenge games aren’t that popular.

Then I changed it to Blindfold Cat and Mouse, and fewer than 50 more people downloaded the game.  Now everyone was expecting a chasing game.

One of the testers recommended I include the concepts of a card game, and of solitaire, into the name, so I tested the name “Blindfold Cat and Mouse Solitaire”.  That did the trick, and the game took off.

The general idea of the game is that each player uses skill and strategy to create stacks of sequentially numbered, ascending cards (2,3,4…) until they have no more left to play. Once everyone is dealt their own personal stockpile of cards, play begins by drawing from a central pile and building up to four “build” piles. There are a bunch of wild-cards that can break up static situations and can be played as any number.

The first player to deplete all of his or her stockpile cards is the winner.  Just like UNO, which is known as Blindfold Wildcard, Blindfold Cat and Mouse Solitaire’ is an easy game to learn and play.  You can play against one, two or three computer opponents, and you adjust your opponent’s skill to make the game more challenging.

Like all Blindfold card games, moving and playing cards is done with swipe and tap gestures.  For example, to move within your hand, swipe left and right; each time the card read to you.  To move between piles of cards, swipe left and right with two fingers.  To select a card to play, tap twice.  To move that card to another piles, swipe left or right with two fingers to get to the piles you want,  then tap twice again.

To download this game: