Five-O Deluxe is a brilliant 'math-meets-Scrabble' board game that deserves a spot on any puzzle lover's phone. By replacing letters with numbers and requiring sequences that sum to multiples of five, it creates a unique mental challenge that feels both familiar and entirely fresh. It’s the kind of game that forces you to look at the board differently with every turn, hunting for that perfect intersection that will net you a 25 or 30 point bonus.
The 'Deluxe' version adds a level of polish and connectivity that elevates the experience. The online multiplayer is smooth, and the inclusion of a 'Nudge' button is a life-saver for those long-running matches against friends. It’s also an excellent educational tool disguised as a competitive game; playing a few rounds feels like a great way to sharpen your mental arithmetic without the boredom of a typical math app. Simple, strategic, and highly replayable.
Available on: iPhone, iPad, iPod
Version 2.10.1Wed Mar 05 2025
Bug fixes and improvements
Five-O puts a numerical twist on the classic crossword board game!
Instead of letters, you place number tiles, forming sequences that must add up to multiples of five, with no more than five tiles per sequence. Think strategically, maximize your bonuses, and outscore your opponent!
"This is a great must have iPad game. And I love the fact that it really works your mind muscles. It is a very simple game but it will get you hooked." - tcgeeks.com
"The price is right, and the game is fun as well as educational. I’d very much recommend it, especially if you’re looking for something the whole family can enjoy or even just for the kids." - ipadboardgames.org
Features:
Easy to learn rules
Online Multiplayer, take turns at your leisure
Pass-and-Play mode for up to 4 local players
Single player mode with challenging computer opponents
Hints for when you get stuck
Simple controls, just touch and drag the tiles to the board
How to play:
Players take turns placing intersecting sequences of numbers on the board which add up to multiples of five. For example, 7-3-8-7 would be a valid sequence because it adds up to 25. The sequence 3-9-5 is not valid because it adds up to 17 which is not a multiple of five.
On each turn, players may play tiles in one straight line sequence, horizontally or vertically. The first sequence must be played on the center square, and all sequences after that must intersect with tiles already in play.
The score for each play is the sum of all the number tiles in sequences completed on that turn. Colored bonus squares award extra points and multipliers.
At the end of each turn, players draw new tiles to replace the ones played. The game ends when a player plays all of their remaining tiles and there are no more tiles left to draw.
Requires iOS 12.0 or later. Compatible with iPhone, iPad, and iPod touch.Five-O puts a numerical twist on the classic crossword board game!
Instead of letters, you place number tiles, forming sequences that must add up to multiples of five, with no more than five tiles per sequence. Think strategically, maximize your bonuses, and outscore your opponent!
"This is a great must have iPad game. And I love the fact that it really works your mind muscles. It is a very simple game but it will get you hooked." - tcgeeks.com
"The price is right, and the game is fun as well as educational. I’d very much recommend it, especially if you’re looking for something the whole family can enjoy or even just for the kids." - ipadboardgames.org
Features:
Easy to learn rules
Online Multiplayer, take turns at your leisure
Pass-and-Play mode for up to 4 local players
Single player mode with challenging computer opponents
Hints for when you get stuck
Simple controls, just touch and drag the tiles to the board
How to play:
Players take turns placing intersecting sequences of numbers on the board which add up to multiples of five. For example, 7-3-8-7 would be a valid sequence because it adds up to 25. The sequence 3-9-5 is not valid because it adds up to 17 which is not a multiple of five.
On each turn, players may play tiles in one straight line sequence, horizontally or vertically. The first sequence must be played on the center square, and all sequences after that must intersect with tiles already in play.
The score for each play is the sum of all the number tiles in sequences completed on that turn. Colored bonus squares award extra points and multipliers.
At the end of each turn, players draw new tiles to replace the ones played. The game ends when a player plays all of their remaining tiles and there are no more tiles left to draw.










Five-O puts a numerical twist on the classic crossword board game! Instead of letters, players place number tiles to form sequences that must add up to multiples of five. Think strategically to maximize bonuses on colored squares and outscore your opponents. Featuring online multiplayer, local pass-and-play for up to 4 people, and a challenging computer AI, it's a perfect blend of math and strategy for all ages.
Online Multiplayer & Local Pass-and-Play
Challenging Single-Player AI
Stat Tracking & Game Results Graphs
Hint System for Learning Strategy
Look for intersections where one tile can complete two different sequences at once. Focus on landing high-value tiles on the colored bonus squares to multiply your score for that turn.
Challenge friends online or use the 'Pass-and-Play' mode for local matches. If your opponent is taking too long, use the 'Nudge' button to remind them it's their turn.
A sequence can be up to five tiles long and the sum of its numbers must be a multiple of five (e.g., 5, 10, 15, etc.).