Games like Quantum Protocol on Steam
For those who prefer not to search, lists of the most played, top deals and best free games like Quantum Protocol are available at the bottom of the page.
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A tale of the planet's final love story told using the full force of minori's critically acclaimed illustrative style, engaging musical compositions, and the highly talented staff that has led fans coming back for more every single time!
YU-NO: A girl who chants love at the bound of this world
Takuya Arima receives a package from his supposedly deceased father. It contains the mysterious Reflector Device which allows the user to travel between parallel worlds. Takuya must unearth the mystery of his father's legacy to prevent a calamity threatening to envelop reality itself.
AI: The Somnium Files
Play as detective Kaname Date on the case of an elusive serial killer in this thrilling, sci-fi murder mystery.
Most played games like Quantum Protocol on Steam
Take a look at the top games like Quantum Protocol that are currently attracting the largest player bases on the Steam platform, as of June 15th 2025.
1. Balatro
Similarity 41% The poker roguelike. Balatro is a hypnotically satisfying deckbuilder where you play illegal poker hands, discover game-changing jokers, and trigger adrenaline-pumping, outrageous combos. Balatro is a card game, roguelike deckbuilder and rogue-like game developed by LocalThunk and published by Playstack. Released on February 20th 2024 has received 153,566 reviews of which 150,524 were positive and 3,042 were negative resulting in an impressive rating of 9.7 out of 10. The game has hit the top spot as the #1 most played game like Quantum Protocol, thanks to its 17,123 peak concurrent players over the last day.
9.7
150,524
3,042
17,123
players
2. Monster Train 2
Similarity 40% Monster Train returns with all new clans, new enemy factions, new challenges, new modes and more! Defend your Pyre in the classic three-tiered, vertical gameplay that made the original roguelike deckbuilder a hit. Monster Train 2 is a strategy, card game and rogue-like game developed by Shiny Shoe and published by Big Fan Games. Released on May 21st 2025 has received 3,664 reviews of which 3,505 were positive and 159 were negative resulting in an impressive rating of 9.2 out of 10. While seeing 6,617 players online at once in the last 24 hours, this game is currently ranked #2 among games like Quantum Protocol based on player count.
9.2
3,505
159
6,617
players
3. Monster Train
Similarity 50% Monster Train is a strategic roguelike deck building game with a twist. Set on a train to hell, you’ll use tactical decision making to defend multiple vertical battlegrounds. With real time competitive multiplayer and endless replayability, Monster Train is always on time. Monster Train is a card battler, rogue-lite and card game game developed by Shiny Shoe and published by Good Shepherd Entertainment. Released on May 21st 2020 has received 21,868 reviews of which 20,995 were positive and 873 were negative resulting in an impressive rating of 9.4 out of 10. While seeing 595 players online at once in the last 24 hours, this game is currently ranked #3 among games like Quantum Protocol based on player count.
9.4
20,995
873
595
players
4. Marvel's Midnight Suns
Similarity 45% FIGHT AND STRATEGIZE LIKE A SUPER HERO IN THE DARKER CORNERS OF THE MARVEL UNIVERSE. Play as The Hunter, a legendary demon slayer who must lead a team of Super Heroes and supernatural warriors facing apocalyptic threats. Marvel's Midnight Suns is a superhero, turn-based tactics and deckbuilding game developed by Firaxis Games and published by 2K. Released on December 01st 2022 has received 21,874 reviews of which 17,871 were positive and 4,003 were negative resulting in a rating of 8.0 out of 10. With 436 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like Quantum Protocol.
8.0
17,871
4,003
436
players
5. Yu-Gi-Oh! Legacy of the Duelist : Link Evolution
Similarity 43% Build your Deck from over 10,000 cards and take on the most iconic Duelists from the Yu-Gi-Oh! universe. Relive the stories from the original Yu-Gi-Oh! animated series through Yu-Gi-Oh! VRAINS! Yu-Gi-Oh! Legacy of the Duelist : Link Evolution is a simulation, trading card game and anime game developed by Other Ocean Emeryville and published by KONAMI. Released on March 24th 2020 has received 4,361 reviews of which 3,584 were positive and 777 were negative resulting in a rating of 8.0 out of 10. With 252 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like Quantum Protocol.
8.0
3,584
777
252
players
6. StarVaders
Similarity 59% Pilot a powerful mech to fight off the alien invasion in this ULTIMATE fusion of deckbuilding and grid-based tactics. Discover game-breaking combos, rewind time to alter your fate, and protect the future of humanity in this endlessly replayable roguelike. StarVaders is a roguelike deckbuilder, deckbuilding and turn-based tactics game developed by Pengonauts and published by Joystick Ventures and Playworks. Released on April 30th 2025 has received 1,955 reviews of which 1,919 were positive and 36 were negative resulting in an impressive rating of 9.3 out of 10. With 184 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like Quantum Protocol.
9.3
1,919
36
184
players
7. STEINS;GATE
Similarity 41% Developed by 5pb. and Nitroplus, STEINS;GATE was awarded Famitsu magazine's coveted annual Game of Excellence award and was voted one of the most emotionally charged “tear-inducing games” ever made, in a Famitsu poll. It is a gripping and moving Visual Novel, which has already spawned manga and anime adaptations. STEINS;GATE is a visual novel, story rich and anime game developed by MAGES. Inc. and published by Spike Chunsoft Co. and Ltd.. Released on September 08th 2016 has received 21,078 reviews of which 20,531 were positive and 547 were negative resulting in an impressive rating of 9.5 out of 10. With 157 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like Quantum Protocol.
9.5
20,531
547
157
players
8. Touhou: Lost Branch of Legend
Similarity 50% Welcome to Eientei, combine multiple colors of mana to build your ideal deck, duel with gensokyo girls, and chase back the mysterious moon treasure. Also, enjoy the unpredictable Roguelike with fantasy Danmaku! Touhou: Lost Branch of Legend is a roguelike deckbuilder, anime and strategy game developed and published by Alioth Studio. Released on August 17th 2022 has received 1,650 reviews of which 1,536 were positive and 114 were negative resulting in a rating of 8.9 out of 10. The game currently holds the #8 spot among the most played games like Quantum Protocol.
8.9
1,536
114
94
players
9. Necroking
Similarity 51% Necroking is a turn-based tactics roguelite with vast deckbuilding. You play as a Master of Necromancy. Build your skulls deck, raise skeletons and other scum to defeat settlements desecrated by life. Necroking is a turn-based tactics, rogue-lite and deckbuilding game developed by KORO.GAMES and published by Alawar. Released on September 04th 2024 has received 628 reviews of which 525 were positive and 103 were negative resulting in a rating of 7.9 out of 10. The game currently holds the #9 spot among the most played games like Quantum Protocol.
7.9
525
103
89
players
10. Yu-Gi-Oh! Legacy of the Duelist
Similarity 53% Relive past Dueling glory against Yu-Gi-Oh! characters from the past and present! Compete against other players online with your custom deck, then challenge them in Battle Pack Draft and Sealed Play! Yu-Gi-Oh! Legacy of the Duelist is a card game, card battler and deckbuilding game developed by Other Ocean Interactive and published by KONAMI. Released on December 07th 2016 has received 4,795 reviews of which 4,041 were positive and 754 were negative resulting in a rating of 8.2 out of 10. The game currently holds the #10 spot among the most played games like Quantum Protocol.
8.2
4,041
754
81
players
Best deals on games like Quantum Protocol on Steam
Discover fantastic savings with the best discounts on a variety of games like Quantum Protocol available on Steam right now, updated on June 15th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like Quantum Protocol.
1. Roguebook
Similarity 44% Embrace the challenge of a roguelike deckbuilder with unique mechanics from the developers of Faeria and Richard Garfield, creator of Magic: The Gathering™. Build a team of two heroes, unleash powerful combos and defeat the legends of the Roguebook! Roguebook is a rpg, indie and card game game developed by Abrakam Entertainment SA and published by Nacon. Released on June 17th 2021 has received 3,856 reviews of which 3,231 were positive and 625 were negative resulting in a rating of 8.1 out of 10. Featuring a massive 98% discount, this game currently holds the #1 spot in the best deals for games like Quantum Protocol.
8.1
3,231
625
-98%
24.99€
0.57€
2. Super Bullet Break
Similarity 48% Save the world of online multiplayer games from a rogue AI in this deck-building strategy roguelite! Collect more than 160 cute and colourful Bullets as you move through maps based on iconic game genres and defeat enemies in challenging turn-based combat. Super Bullet Break is a anime, turn-based tactics and card battler game developed by BeXide Inc. and published by PQube. Released on August 12th 2022 has received 398 reviews of which 322 were positive and 76 were negative resulting in a rating of 7.6 out of 10. Thanks to its incredible 98% discount, this game is now the #2 best deal in games like Quantum Protocol.
7.6
322
76
-98%
19.99€
0.59€
3. Monster Train
Similarity 50% Monster Train is a strategic roguelike deck building game with a twist. Set on a train to hell, you’ll use tactical decision making to defend multiple vertical battlegrounds. With real time competitive multiplayer and endless replayability, Monster Train is always on time. Monster Train is a card battler, rogue-lite and card game game developed by Shiny Shoe and published by Good Shepherd Entertainment. Released on May 21st 2020 has received 21,868 reviews of which 20,995 were positive and 873 were negative resulting in an impressive rating of 9.4 out of 10. Thanks to its incredible 96% discount, this game is now the #3 best deal in games like Quantum Protocol.
9.4
20,995
873
-96%
24.50€
1.19€
4. Floppy Knights
Similarity 42% Meet the Floppy Knights: tangible projections summoned from floppy disks! Tactics fuse with card game mechanics as Phoebe and Carlton, a brilliant young inventor & her robot-arm bestie, square off in turn-based battles. Select your Knights, hone your deck, and execute your strategy for victory! Floppy Knights is a turn-based strategy, deckbuilding and female protagonist game developed by Rose City Games and published by Rose City Games and wiip. Released on May 24th 2022 has received 375 reviews of which 302 were positive and 73 were negative resulting in a rating of 7.5 out of 10. Currently offered at a significant 96% discount, this title has earned the #4 position in the best deals for games like Quantum Protocol.
7.5
302
73
-96%
16.79€
0.75€
5. NEOVERSE
Similarity 40% Neoverse is a beautiful, fantastic game consisting of adventures with thrilling challenges. It is a strategic, action, rogue-lite, deck building game that will test the player’s skill. Start an adventure with unique heroes to save the world along various timelines. NEOVERSE is a card battler, deckbuilding and female protagonist game developed and published by Tinogames Inc.. Released on February 18th 2020 has received 3,743 reviews of which 3,155 were positive and 588 were negative resulting in a rating of 8.1 out of 10. Currently offered at a significant 95% discount, this title has earned the #5 position in the best deals for games like Quantum Protocol.
8.1
3,155
588
-95%
16.79€
1.00€
6. Marvel's Midnight Suns
Similarity 45% FIGHT AND STRATEGIZE LIKE A SUPER HERO IN THE DARKER CORNERS OF THE MARVEL UNIVERSE. Play as The Hunter, a legendary demon slayer who must lead a team of Super Heroes and supernatural warriors facing apocalyptic threats. Marvel's Midnight Suns is a superhero, turn-based tactics and deckbuilding game developed by Firaxis Games and published by 2K. Released on December 01st 2022 has received 21,874 reviews of which 17,871 were positive and 4,003 were negative resulting in a rating of 8.0 out of 10. Currently offered at a significant 95% discount, this title has earned the #6 position in the best deals for games like Quantum Protocol.
8.0
17,871
4,003
-95%
99.99€
5.17€
7. Marvel's Midnight Suns
Similarity 45% FIGHT AND STRATEGIZE LIKE A SUPER HERO IN THE DARKER CORNERS OF THE MARVEL UNIVERSE. Play as The Hunter, a legendary demon slayer who must lead a team of Super Heroes and supernatural warriors facing apocalyptic threats. Marvel's Midnight Suns is a game developed and published by . Released on December 01st 2022 has received 21,874 reviews of which 17,871 were positive and 4,003 were negative resulting in a rating of 8.0 out of 10. Currently offered at a significant 95% discount, this title has earned the #7 position in the best deals for games like Quantum Protocol.
8.0
17,871
4,003
-95%
99.99€
5.17€
8. Monster Monpiece
Similarity 45% Collect and train over 100 "monster girls" that come to life in strategic, card-based battles! Strengthen your cards with the First Crush ❤ Rub mode, taking on a hands-on role to warm them up and gain more artwork! Monster Monpiece is a strategy, card battler and deckbuilding game developed by Compile Heart and Idea Factory and published by Idea Factory International. Released on March 14th 2017 has received 381 reviews of which 274 were positive and 107 were negative resulting in a rating of 6.8 out of 10. Currently offered at a significant 92% discount, this title has earned the #8 position in the best deals for games like Quantum Protocol.
6.8
274
107
-92%
8.19€
0.72€
9. Yu-Gi-Oh! Legacy of the Duelist
Similarity 53% Relive past Dueling glory against Yu-Gi-Oh! characters from the past and present! Compete against other players online with your custom deck, then challenge them in Battle Pack Draft and Sealed Play! Yu-Gi-Oh! Legacy of the Duelist is a card game, card battler and deckbuilding game developed by Other Ocean Interactive and published by KONAMI. Released on December 07th 2016 has received 4,795 reviews of which 4,041 were positive and 754 were negative resulting in a rating of 8.2 out of 10. Currently offered at a significant 90% discount, this title has earned the #9 position in the best deals for games like Quantum Protocol.
8.2
4,041
754
-90%
19.99€
2.12€
10. Monster Train
Similarity 50% Monster Train is a strategic roguelike deck building game with a twist. Set on a train to hell, you’ll use tactical decision making to defend multiple vertical battlegrounds. With real time competitive multiplayer and endless replayability, Monster Train is always on time. Monster Train is a game developed and published by . Released on May 21st 2020 has received 21,868 reviews of which 20,995 were positive and 873 were negative resulting in an impressive rating of 9.4 out of 10. Currently offered at a significant 96% discount, this title has earned the #10 position in the best deals for games like Quantum Protocol.
9.4
20,995
873
-96%
24.50€
1.19€
Free games like Quantum Protocol on Steam
Check out this fantastic list of free-to-play games like Quantum Protocol you can enjoy on Steam right now, updated on June 15th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play games like Quantum Protocol.
1. Star Realms
Similarity 42% Star Realms is a hugely popular space combat deckbuilding game. Download and play today (note: base set is required to play online) to find out why Star Realms is the winner of SXSW 2014 Board Game of the Year, 7 Golden Geek Awards from BoardGameGeek, and 2 Dice Tower awards! Star Realms is a deckbuilding, strategy and card battler game developed and published by Wise Wizard Games and LLC. Released on March 08th 2016 has received 2,069 reviews of which 1,793 were positive and 276 were negative resulting in a rating of 8.3 out of 10. The game currently holds the #1 spot among the most played free games like Quantum Protocol.
8.3
1,793
276
57
players
2. Chess Evolved Online
Similarity 43% secretly the most overpowered game in existence Chess Evolved Online is a pvp, tactical and deckbuilding game developed and published by TheGrandestine. Released on February 22nd 2021 has received 724 reviews of which 666 were positive and 58 were negative resulting in a rating of 8.6 out of 10. The game currently holds the #2 spot among the most played free games like Quantum Protocol.
8.6
666
58
13
players
3. Die in the Dungeon: Origins
Similarity 40% Fight your way through a mysterious dungeon in this deck-building, turn-based roguelike game where you don't use cards, but DICE! Deal with enemies by combining dice on your board, boost their effects with magical relics, and discover the story behind Die in the Dungeon! Die in the Dungeon: Origins is a roguelike deckbuilder, card game and deckbuilding game developed by ATICO and published by HypeTrain Digital. Released on December 01st 2023 has received 3,421 reviews of which 3,300 were positive and 121 were negative resulting in an impressive rating of 9.3 out of 10. The game currently holds the #3 spot among the most played free games like Quantum Protocol.
9.3
3,300
121
8
players
4. Sunrider: Mask of Arcadius
Similarity 48% As Captain Kayto Shields, embark on a galactic voyage of heroism and survival. With his home world destroyed and his nation conquered, the inexperienced Captain Shields, and his newly minted vessel, the Sunrider, are left as the only hope against a galactic evil intent on subjugating all sentient life. Sunrider: Mask of Arcadius is a anime, visual novel and free to play game developed by Love in Space and published by Sekai Project. Released on July 09th 2014 has received 2,782 reviews of which 2,571 were positive and 211 were negative resulting in a rating of 8.9 out of 10. The game currently holds the #4 spot among the most played free games like Quantum Protocol.
8.9
2,571
211
5
players
5. .Forty-Five
Similarity 40% A perfect mix of card game, rogue-lite, and pure wild west mayhem. Explore an ever-changing map, collect cards, and battle enemies. Cards are Bullets and are loaded into the revolver to gun down enemies. Experience .Forty-Five's innovative gameplay for free! .Forty-Five is a roguelike deckbuilder, western and free to play game developed and published by Microwave Studios. Released on March 24th 2024 has received 887 reviews of which 850 were positive and 37 were negative resulting in a rating of 9.0 out of 10. The game currently holds the #5 spot among the most played free games like Quantum Protocol.
9.0
850
37
3
players
![Lost girl`s [diary]](https://shared.cloudflare.steamstatic.com/store_item_assets/steam/apps/445230/header.jpg)
6. Lost girl`s [diary]
Similarity 44% A group of girls are having their vacation, alone. What would a group of girls do on a dark Christmas night? Of course, fortunetelling! Unfortunately for them, their boyfriends are not about to leave them alone and their sudden visit totally ruins their plans for fortune telling, turning it into a scary story contest. Lost girl`s [diary] is a free to play, visual novel and anime game developed and published by SmoleVN. Released on March 24th 2016 has received 1,099 reviews of which 902 were positive and 197 were negative resulting in a rating of 7.8 out of 10. The game currently holds the #6 spot among the most played free games like Quantum Protocol.
7.8
902
197
2
players
7. Fights in Tight Spaces (Prologue)
Similarity 45% Play the first mission of Fights in Tight Spaces for free! A stylish blend of deck-building, turn-based tactics, and thrilling fight sequences in action-movie settings. Learn to balance your hand, momentum, and positioning to overcome the odds to defeat your adversaries. Full game OUT NOW. Fights in Tight Spaces (Prologue) is a deckbuilding, strategy and turn-based tactics game developed by Ground Shatter and published by Raw Fury. Released on December 14th 2020 has received 811 reviews of which 762 were positive and 49 were negative resulting in a rating of 8.8 out of 10. The game currently holds the #7 spot among the most played free games like Quantum Protocol.
8.8
762
49
1
players
8. Causa, Voices of the Dusk
Similarity 42% Causa, Voices of the Dusk is an intriguing turn-based strategy card game with innovative game mechanics. Sacrifice cards to raise your Cause, and bring them back later for unexpected powerful plays. Prove your abilities in battle and draft your way to Victory in extremely challenging campaigns. Causa, Voices of the Dusk is a card game, card battler and deckbuilding game developed and published by Niebla Games. Released on May 26th 2021 has received 337 reviews of which 245 were positive and 92 were negative resulting in a rating of 6.9 out of 10. The game currently holds the #8 spot among the most played free games like Quantum Protocol.
6.9
245
92
1
players
9. SC2VN - The eSports Visual Novel
Similarity 40% SC2VN is a visual novel about the South Korean StarCraft 2 scene. You play as Mach, a foreign semi-pro trying to make it in eSports who soon learns that success in StarCraft takes more than in-game strategy. SC2VN - The eSports Visual Novel is a visual novel, anime and free to play game developed and published by Team Eleven. Released on September 22nd 2015 has received 870 reviews of which 807 were positive and 63 were negative resulting in a rating of 8.7 out of 10. The game currently holds the #9 spot among the most played free games like Quantum Protocol.
8.7
807
63