Quantum Protocol

About

"Quantum Protocol" is a deck-building card game where you build your deck on the fly to tackle various scenarios. Adapt your strategy and cards to changing situations, as both you and your enemies can adjust your tactics. The game also delves into the personal stories of the characters behind the code, providing a deeper narrative alongside the hacking-themed gameplay.

Genres & Tags

Play Modes

Single-Player Play through the game's story or campaign solo

92%

Audience ScoreBased on 464 reviews

gameplay76 positive mentions

atmosphere3 negative mentions

Innovative gameplay that allows players to change their deck mid-battle, adding a unique strategic layer to the card game experience.
Challenging and rewarding, with a steep learning curve that encourages players to master the mechanics and explore different decks.
Beautiful art style and engaging music that enhance the overall experience, along with a lighthearted story that adds charm to the game.

The game can be overwhelming for beginners due to its complexity and the sheer number of mechanics and keywords to learn.
Difficulty spikes can be frustrating, especially in later levels where the challenge increases significantly without adequate preparation.
The visual novel aspect feels shallow and lacks depth, with limited character development and static dialogue that may not engage all players.

gameplay
302 mentions Positive Neutral Negative
25%
74%
1%
The gameplay of Quantum Protocol is highly praised for its intricate mechanics and unique deck-building system, offering a deep and engaging experience that challenges players to think strategically. While the learning curve can be steep, the game provides various options to ease the difficulty, allowing players to adapt and master its complex interactions. Overall, the gameplay is described as innovative, smooth, and rewarding, making it a standout in the deck-building genre, despite some critiques regarding the narrative elements.
- “The gameplay is where this game really shines for those with enough patience and interest in it to learn about the different decks.”
- “Quantum Protocol's gameplay really stretches the brain and forces you to come up with interesting solutions to each stage.”
- “The result is a deckbuilder that's unlike any other I know of, where the mechanics are fresh, the gameplay is tense, and each action matters.”
- “The gameplay mechanics have a pretty rough learning curve, but once you get over that hump, the game starts to open up and shine wonderfully as a deckbuilder roguelite.”
- “The lengthy tutorial was painful; I spent more time reading cards and new mechanics than playing the game, and it took me over an hour to get through it to mastery level 14 or so.”
- “The only real thing that's missing is gameplay variety; the gameplay loop is basically 'pick a deck, pick a dungeon'.”
story
270 mentions Positive Neutral Negative
20%
77%
3%
The story in Quantum Protocol is generally considered simple and somewhat shallow, serving primarily as a vehicle for gameplay rather than a deep narrative experience. While it features charming characters and engaging dialogue, many players find the dialogue lacking and the overall plot to be a brief introduction to the game's mechanics, with the real depth emerging in the post-story roguelike mode. Despite its shortcomings, the visual novel style and lighthearted tone provide an enjoyable backdrop to the card-based gameplay, making it a decent complement to the core mechanics.
- “I found it through their crossover with Nova Drift and decided to give it a shot, and this game has some of the most stellar gameplay, beautiful art, and top-tier sound design I've ever seen, and the story is so good it's hard to explain.”
- “The corny, cutesy story, while riddled with stilted dialogue and anime tropes, still manages to be heartfelt and gives you just enough connection to the characters and world, without overstaying its welcome.”
- “An interesting puzzle-solving, deck-building game that ties it all together with an anime aesthetic and surprisingly interesting story.”
- “The entire story is a glorified tutorial that makes absolutely sure that you can demonstrate an understanding of all the game's moving pieces before it lets you go.”
- “The story is bare-bones and disjointed, told in dialogue only by a constantly growing cast of characters that’s honestly hard to keep track of.”
- “Considering the story’s weakness and the high gameplay to story ratio, I can’t recommend 'Quantum Protocol' to visual novel fans looking for a decent story with a bit of gameplay.”
music
90 mentions Positive Neutral Negative
64%
33%
3%
The music in the game has received widespread acclaim, with many players praising its energetic and engaging quality, often likening it to high-caliber soundtracks from other popular titles. While some noted that the soundtrack can become repetitive due to a limited number of tracks, the overall composition and integration with gameplay are considered excellent, enhancing the gaming experience significantly. Additionally, the visuals and sound design complement the music well, creating a cohesive and enjoyable atmosphere.
- “The music is amazing, like Necrodancer levels of good in my opinion. The character art and the backgrounds all look amazing, the visual novel part is nothing mind-blowing but it is funny, and the gameplay is very satisfying and unique enough that an experienced roguelike player has something to learn.”
- “A fantastic game with great characters, unique gameplay, infectiously amusing writing, and really good music.”
- “Very fun and interesting take on the deck building genre, and I cannot stress this enough, one of the best soundtracks I've heard in a game.”
- “PSA: play with the music off, the soundtrack is a hell of an earworm because there's basically only one song.”
- “I found the music annoying at first but it grew on me, so it's a plus.”
- “It simply has to compete with the outstanding game mechanics, crisp UI, and small but fitting soundtrack.”
graphics
72 mentions Positive Neutral Negative
58%
38%
4%
The graphics of the game are generally praised for their clean, attractive design and vibrant anime aesthetic, with many reviewers highlighting the beautiful artwork and engaging visuals that complement the gameplay. However, some criticism arises regarding the simplicity of in-battle visuals, which do not always match the quality of the character art and backgrounds. Overall, the graphics contribute positively to the game's experience, enhanced by a fitting soundtrack and user interface.
- “Fantastic visuals, quite challenging but fun gameplay, gorgeous music.”
- “An excellent and creative twist on the card game with proactive and snappy gameplay, interesting storyline and characters, and gorgeous graphics.”
- “The artwork is lovely, and the anime-style character art and detailed sci-fi backgrounds mesh well with the more minimal pixel artwork on the cards.”
- “Kinda lacking in the graphics department in my opinion but still a good game overall.”
- “Unfortunately, this is in stark contrast to the in-battle visuals which are serviceable, but very simple, and not close enough to matching the artwork that came before it.”
- “Also leans too hard on GPU for a game with 2D graphics.”
replayability
18 mentions Positive Neutral Negative
44%
39%
17%
The game boasts high replayability due to its ascension system, unique deck strategies, and a postgame that transforms the experience into a dynamic roguelike environment. Players can engage in various replayable missions with different decks, and the random nature of card drops and character archetypes enhances the replay value. However, some reviewers noted that the random dungeons may not be as engaging as the constructed ones, which could affect overall replayability.
- “The ascension system gives high replay value, and each deck has a unique strategy behind it.”
- “Once the main campaign is done, there are also 5 levels of randomly generated 'ascensions' to give it the true roguelite finish for infinite replayability.”
- “And once you finally manage to bust through the obscenely hard final dungeon, the game offers an exceptionally replayable mode that feels like a mini roguelike, with randomized waves, more control over your deckbuilding, insane bosses, and some absolutely delicious rewards if you manage to pull off a win.”
- “My current early impression is that the random dungeons aren't as interesting as the constructed ones, and this may impact the game's replay value.”
- “After 30 hours, it is surprising to me how different the same level can be with each of Quantum Protocol's characters, which breeds the replayability required to succeed in the deckbuilding game archetype.”
- “This makes it that the 'dungeon' levels, which are the main parts of the game, have added replayability due to the random nature of card drops, and the numerous deck types you can build using the various characters' card sets, or after progressing the game enough, potentially mixing archetypes from characters.”
humor
16 mentions Positive Neutral Negative
100%
The humor in the game is consistently praised, with players highlighting the funny dialogue and well-written story that keeps the experience enjoyable and engaging. The characters are described as cool and amusing, contributing to a light-hearted atmosphere that balances challenge with fun. Overall, the humor enhances the gameplay, making it a memorable aspect of the game.
- “The story is short, but quite funny and enjoyable to read through.”
- “One of the most original card systems, and a funny as hell well written story.”
- “The gameplay is smooth and engaging, the art is beautiful, and the dialogue is hilarious.”
atmosphere
6 mentions Positive Neutral Negative
33%
17%
50%
The game's atmosphere is enhanced by a refined and subtle menu and UI design that complements its sci-fi theme. The chiptune-inspired background music effectively matches the various stage themes, enriching the overall experience and adding depth to the characters and world. Overall, the combination of visual and auditory elements successfully immerses players in the game's unique atmosphere.
- “The menu and UI design is refined and subtle, not getting in the way and fitting into the whole sci-fi atmosphere.”
- “The background music tracks dip into the chiptune realm and match the atmosphere pretty well, usually flavored around the respective stage's overall theme.”
- “It does what it does very well: setting up the atmosphere of the game and giving personality to the characters and the world while bridging the paths between the battles.”
- “Sound: the background music tracks dip into the chiptune realm and match the atmosphere pretty well, usually flavored around the respective stage's overall theme.”
- “Menu and UI design is refined and subtle, not getting in the way and fitting into the whole sci-fi atmosphere.”
emotional
4 mentions Positive Neutral Negative
100%
The emotional aspect of the game is highlighted by its heartfelt storytelling and character connections, despite its reliance on corny dialogue and anime tropes. Players experience genuine feelings, such as secondhand embarrassment, which enhances their engagement with the narrative. Overall, the story resonates deeply, leaving a lasting impression without feeling overly drawn out.
- “It's definitely one of the stories of all time; a certain character genuinely made me feel secondhand embarrassment when she [spoiler] decided to hack the production servers of her mom's company just to prove a point.”
- “The corny, cutesy story, while riddled with stilted dialogue and anime tropes, still manages to be heartfelt and gives you just enough connection to the characters and world, without overstaying its welcome.”
grinding
4 mentions Positive Neutral Negative
100%
Players often find the grinding aspect of the game tedious, especially if they are not engaged with the story, as repetitive side-missions and puzzles can lead to frustration. The need to repeatedly replay sections, particularly before challenging bosses, detracts from the overall enjoyment and can feel more like a chore than a rewarding experience.
- “If you're not invested in the story, the side missions and puzzles might feel tedious.”
- “Even when losing due to my own poor strategy (often, to be honest), having to continually replay a dozen waves I had done to get to the final boss who I couldn’t figure out ended up feeling more tedious and frustrating than a fun challenge.”
character development
2 mentions Positive Neutral Negative
50%
50%
Character development is highlighted for its vibrant and dynamic design, with each character exuding personality and style, contributing to a lively and engaging experience.
- “Don't even get me started on the character design - each one is vibrant, packed with personality and absolutely brimming with life and style!”

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9h Median play time

9h Average play time

9-9h Spent by most gamers

*Based on 2 analyzed playthroughs

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