
This is a calm yet immersive puzzle-centered platformer, well-suited for players who enjoy mechanical interactions and solving puzzles. It allows you to experience the fun of discovering and overcoming challenges without the pressure of combat.
Revenue comes from in-game items and microtransactions, which our price-based model doesn't estimate. Copies below reflect the player base, not paid sales.
Media

About
As you explore, you'll need to observe environmental clues and decide which card to play at the right moment. The design encourages trial, error, and clever sequencing. The experience is enhanced by atmospheric pixel art visuals and subtle jazz-themed soundscapes, immersing you in a world that feels both stylish and mysterious.
There are no enemies, no health bars — just you, your deck, and your mind.
Card-Based Mechanics: Solve puzzles by playing different cards with unique effects.
Tactical Puzzle Solving: Timing and order of card usage matter in every room.
Stylish Presentation: Crisp pixel art with moody lighting and jazz bar aesthetics.
Combat-Free Exploration: No fighting — just puzzles, logic, and experimentation.
Replay Value: Optional time trials and randomized card draws offer varied experiences.
Think of it as a mix between Baba Is You and Slay the Spire, but in a 2D side-scrolling format. You’re not just jumping — you’re managing your deck and applying cards like tools to progress through a carefully constructed puzzle world.
If you enjoy clever mechanics, elegant puzzles, and relaxed, thought-provoking gameplay, this game delivers a refreshing twist on the puzzle platformer genre.
Genres
Stats
Languages: Korean
Reviews
Rules: Play cards that add up to multiples of 10, using up to 5 cards at a time. Base score for a hand = {Hand Size}^2 (i.e. 2 card hand = 4 points, 3c = 9, 4c = 16, and 5c = 25) +1 bonus score for each card that is a duplicate of another card in the hand. (e.g. 6+6+6+6+6, or 2+2+2+7+7 will each score 5 bonus points, and 5+5 would score 2.) Add 1 second for the clock for each multiple of 10 the scored hand is. (i.e. 1 second for a hand that adds to 10, 2 for 20, etc.) Spend 2 points to draw an additional card. Pros: ++ It's free. Free is free. + There are three music tracks so at least there's SOME variation to be found despite the unchanging gameplay. (Would be nice if there was an option to have the music keep playing while the window wasn't in focus.) Cons: - Would appreciate hotkeys for Start and Reset on top of the ones for Draw and Give. Even just a default expectation of Enter to start a game would be nice. - The rules are only available in Korean despite them being really straightforward. Seems like virtually no work to implement, so it's a shame not to see even a basic translation of the rules. ---- The entire summary is just AI hallucinating a game that bears no resemblance to the actual game. I get that "you add numbers to make multiples of 10" is not as compelling as making up nonsense about "observing environmental clues" (the environmental clues are just dithering in the corners), "crisp pixel art with moody lighting" (see the aforementioned dithered corners), "playing cards with unique effects" (the unique effects are that numbers are different from other numbers), and it being "a mix between Baba Is You and Slay the Spire, but in a 2D side-scrolling format" (no, and no, and very demonstrably no), but come on. Was irritated enough by the AI summary to play the game just so I could review: After playing, the game is a fine little 10 minute diversion, but there's nothing actually interesting there to be worth recommending you bother.
Related
Related
Trends
Concurrent players on Steam, sampled daily since tracking started.
Bu, mekanik etkileşimlerden ve bulmaca çözmekten hoşlanan oyuncular için ideal, sakin ama sürükleyici bir bulmaca odaklı platform oyunudur. Savaş baskısı olmadan zorlukları keşfetmenin ve üstesinden gelmenin keyfini yaşamanızı sağlar.
ㅤ
숫자 합산 게임 (매일 업데이트되지는 않으며, 작성자가 원할 때마다 업데이트됩니다.) [1일차] 숫자를 합산하는 게임입니다. 하단에 랜덤한 숫자의 카드들이 주어지고 이들을 조합하여 10, 20, 30의 10의 배수를 만들어서 제출하면 점수와 추가 시간을 획득할 수 있죠. 카드는 최대 5장까지 조합하여 제출이 가능하며, 많은 카드를 제출하거나 같은 숫자를 많이 제출하면 추가 점수를 얻을 수 있습니다. 만약 조합이 가능한 카드가 없다면 2점을 지불하여 새로운 카드를 드로우할 수 있죠. 제한된 시간이 0초가 되면 게임 오버가.... 되었다고 안내가 되지만 계속 플레이는 할 수 있습니다. [아쉬운 점] -상점의 설명이랑 게임이랑 전혀 맞지 않음 -배치된 카드의 현재 합산 점수가 안내되면 좋을듯 -점수 계산 공식 좀 알려줘라 -시간이 너무 구석에 있어서 인지하기 어려움 -타임오버되었는대 계속 플레이할 수 있음
"SUM" is a very curious entry here on Steam because the sales page is sheer rubbish... it's like the developer asked a chatbot to create a store sales blurb without actually explaining what game it's for. This is NOT a platformer, or anything else that the store blurb describes. Instead, this is a minimalist browser/mobile tier "card matching" game that kind of works like the Pazaak minigame from Star Wars: Knights of the Old Republic, and if you don't know what KOTOR is, then drop what you're doing and guy buy it here on Steam, because while it's old, it's awesome, and without KOTOR there would be no Mass Effect either. Anyway, enough about actually good games, let's talk about this junk. There's no English translation for the game, but that's okay. The language of bad games is universal. While I couldn't find this on the mobile app stores, everything about it looks and feels like it's a mobile app designed for mobile phones... for PC gaming enthusiasts, it's not going to give you a cutting edge PC gaming experience. That alone is enough to disqualify this from any recommendation. We don't spend thousands building gaming rigs so that we can pretend they're iPhones and play iPhone games and mobile apps. This game features very lacklustre minimalist "art" for graphics instead of anything remotely contemporary. I'm sure the "developer" thought this would come across as "artistic", but it doesn't, it comes across as "really lazy". Yes, contemporary 3D graphics take a lot of time and effort to create. That doesn't mean it's okay not to bother! Developers must try to understand that gaming is a visual medium, and gamers spend a lot of money on high end gaming rigs for a reason. And that reason is not so they can look at lazy, phoned-in half efforts like this. Now on to pricing and value for gamers. This is "free" enough (not every "free" game in the "free" section is truly free, there's usually some hidden price tag), at least you won't be expected to spend any more money after you download this, but just because something is free doesn't mean it's good, and the cost of a game is more than just financial, your time is valuable too. In terms of public reception, this failed. There's over 130 million unique gamers visiting Steam every month. SteamDB showed the game peaked at [b]only 2 concurrent players[/b]... this is a dismal public reception. This was so bad they couldn't even give it away. Bearing in mind that free games don't add +1 to your game collector count, should you bother adding this to your library and downloading it? What's the verdict? Not this time. This isn't worth downloading. While this won't cost you any money, you get what you pay for, and sometimes, even when the game is free, it's still not enough.
좀 어지러움, 근데 재밌음
.
Не плохая игрушка, можно залипнуть.
This game lies to u by its images there's no sound option there's no question mark box there's not the scoreboard, time nor reset button. U put numbers to get 10s and btw yes if the time runs out ur stuck then because there's no option to reset unless u close and reopen the game. I heard from a review that there's 3 songs I can't confirm that I only heard one. also like why is English not supported if that's literally the only language the game is in. Only good thing is it's free and u can play it once property
Игра SUM – это настоящий подарок для ценителей минималистичного, но глубокого геймплея. С первых же минут она затягивает своей простотой, которая, впрочем, обманчива. Каждая головоломка – это маленький шедевр, требующий не только логики, но и некоторой доли пространственного мышления. Постепенное усложнение задач не дает заскучать, а чувство удовлетворения от решения очередного пазла поистине велико. Отсутствие отвлекающих элементов, вроде навязчивого сюжета или кричащей графики, позволяет полностью сосредоточиться на процессе. Это та игра, в которую можно погрузиться на полчаса, а вынырнуть через два часа, совершенно забыв о времени. Прекрасный вариант для того, чтобы потренировать мозг и получить от этого удовольствие.