

Odd||Even
kylix studio · April 6, 2016 · Experimental, Difficult, Education, Puzzle, Logic
Buy Odd||Even from IndieGala Store at $4.99 — the cheapest of 3 stores we compare.
Where to buy Odd||Even — official stores
Cheapest Odd||Even keys — keyshops
Keyshops are third-party marketplaces — keys are resold and can be region-locked or a different edition. Check the listing's region & edition before buying.
Odd||Even price by region
Odd||Even costs £1.72 in the United Kingdom, €1.96 in Europe (EUR), $4.99 in the United States, $4.99 in Georgia (USD), CA$7.09 in Canada, A$7.18 in Australia, NZ$8.89 in New Zealand, zł10.84 in Poland and R$25.19 in Brazil right now.
| Region | Best price | Official store | Key shop | Stores |
|---|---|---|---|---|
| £1.72 −57% | £3.99 | £1.72 | 3 | |
| €1.96 −61% | €4.99 | €1.96 | 4 | |
| $4.99 | $4.99 | $11.88 | 3 | |
| $4.99 | $4.99 | $11.88 | 3 | |
| CA$7.09 | CA$7.09 | — | 2 | |
| A$7.18 | A$7.18 | — | 2 | |
| NZ$8.89 | NZ$8.89 | — | 2 | |
| zł10.84 −50% | zł21.80 | zł10.84 | 3 | |
| R$25.19 | R$25.19 | — | 2 |
Each row is a real price from that region's own stores, not a currency conversion, so the figures are not directly comparable. Switch regions in the header to shop the one you buy in.
Screenshots
About Odd||Even

Oddeven-game Features
- powerful puzzle generator with natural interface
- feature rich mathematical-software
- full control given to users
- sharp graphics 4k ready
- 90 logical selected puzzles
- full rights (once purchased you can use generated puzzles as you like, even for commercial use)
Odd||Even — game info
- Platforms
- Windows
- Steam Deck
- Unsupported
- Player modes
- Single-player
- PC Game Pass
- Not included
What Steam players say
Recent verbatim reviews from Steam — separate from playze.io community reviews below.
Odd||Even is a convoluted maths/numbers "game" where you type in integer values to make the sum of those numbers (or various other mathematical operations on those numbers) add up to some target values... and that's all there is to this simple premise with a convoluted and godawfully bad implementation. There's a tutorial but it's incomprehensible as the developer basically didn't bother (but he wants your money, and a lot of it). You can eventually work out how to play, so you can see a green tick appear... it's absolutely a complete waste of time and money. You might as well play around with a calculator, or Microsoft Excel. Heck, Excel had a flight simulator in it, so it already qualified as a better game than this garbage. From a technical perspective, the game doesn't meet basic minimum requirements that most PC gamers expect as standard. There's no option to change the resolution and no useful graphics tweaks. There's no way to ensure this is running at the native resolution of your display. There's no guarantee this game will look right on any PC as a result of this hamfisted design decision. The game interface is mostly just text boxes/dialogs and features mostly …4 found this helpful
⣿⣿⡻⠿⣳⠸⢿⡇⢇⣿⡧⢹⠿⣿⣿⣿⣿⣾⣿⡇⣿⣿⣿⣿⡿⡐⣯⠁ ⠄⠄ ⠟⣛⣽⡳⠼⠄⠈⣷⡾⣥⣱⠃⠣⣿⣿⣿⣯⣭⠽⡇⣿⣿⣿⣿⣟⢢⠏⠄ ⠄ ⢠⡿⠶⣮⣝⣿⠄⠄⠈⡥⢭⣥⠅⢌⣽⣿⣻⢶⣭⡿⠿⠜⢿⣿⣿⡿⠁⠄⠄ ⠄⣼⣧⠤⢌⣭⡇⠄⠄⠄⠭⠭⠭⠯⠴⣚⣉⣛⡢⠭⠵⢶⣾⣦⡍⠁⠄⠄⠄⠄ ⠄⣿⣷⣯⣭⡷⠄⠄⢀⣀⠩⠍⢉⣛⣛⠫⢏⣈⣭⣥⣶⣶⣦⣭⣛⠄⠄⠄⠄⠄ ⢀⣿⣿⣿⡿⠃⢀⣴⣿⣿⣿⣎⢩⠌⣡⣶⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣆⠄⠄⠄ ⢸⡿⢟⣽⠎⣰⣿⣿⣿⣿⣿⣿⢀⣾⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣦⠄⠄ ⣰⠯⣾⢅⣼⣿⣿⣿⣿⣿⣿⡇⣾⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡄⠄ ⢰⣄⡉⣼⣿⣿⣿⣿⣿⣿⣿⢸⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣧⠄ ⢯⣌⢹⣿⣿⣿⣿⣿⣿⣿⣿⢸⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠄ ⢸⣇⣽⣿⣿⣿⣿⣿⣿⣿⣿⠸⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠄ ⢸⣟⣧⡻⣿⣿⣿⣿⣿⣿⣿⣧⡻⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠄ ⠈⢹⡧⣿⣸⠿⢿⣿⣿⣿⣿⡿⠗⣈⠻⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡇⠄ ⠄⠘⢷⡳⣾⣷⣶⣶⣶⣶⣶⣾⣿⣿⢀⣶⣶⣶⣾⣿⣿⣿⣿⣿⣿⣿⣿⣿⠇⠄ ⠄⠄⠈⣵⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⢸⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠄⠄ ⠄⠄⠄⠸⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠘⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠇⠄⠄3 found this helpful
[h1][b]Not Recommended[/b][/h1]1 found this helpful
Odd||Even, developed and published by kylix studio, is a logic-driven puzzle game built around a deceptively simple mathematical concept: parity. Instead of relying on visual tricks, physics-based interactions, or narrative hooks, the game centers entirely on numbers and their relationships. Its design philosophy is minimalistic and cerebral, clearly targeting players who enjoy structured deduction and mathematical reasoning. At its heart, Odd||Even is less about flashy presentation and more about engaging the mind through carefully constructed numerical challenges. The core gameplay revolves around placing integers within defined grids or layouts while adhering to parity-based constraints. Players must consider whether numbers are odd or even and how those values interact with adjacent positions or overarching rules. The puzzles often resemble logic-grid challenges, where the solution requires analyzing constraints and eliminating impossibilities rather than guessing. Success depends on methodical reasoning, pattern recognition, and a clear understanding of how parity influences placement. Unlike many mainstream puzzle titles that gradually introduce mechanics through narrative f…
This game is like I died and went to hell, but hell is just my grade 10 math class and im forced to do math with no rubric or instructions on how to solve the problems genuinely awful experience
This game is intensely obtuse, and for some reason heats my comp up more than vastly more complex and graphically intensive games. I don't know how to play because the instructions are so deeply unclear at all times.
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