Games like Oh...Sir! Prototype on Steam
For those who prefer not to search, lists of the most played, top deals and best free games like Oh...Sir! Prototype are available at the bottom of the page.
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Meridian 59
Meridian 59 was the first 3D massively multiplayer game, released in 1996. It's back, and it's free to play!
Your Dry Delight
Set in 1920s Prohibition-era America, this romantic comedy follows Detective Richter and his adventures as he attempts to unravel Cleveland's liquor industry.
The Secret of Tremendous Corporation
Explore the deepest SECRETs™ of the Tremendous Corporation®. Find out what happened to indie devs and save the gaming industry!
Panoptic
Panoptic is a local multiplayer VR game that pits you against a friend, where you play as either the giant Overseer or tiny Challenger in a stealthy game of cat and mouse. Will the Challenger slip away undetected through the crowds, or will the Overseer track them down with their powerful laser eye?
Duck Game
Enter the futuristic year of 1984, an age where ducks run wild in a frantic battle for glory. Blast your friends with Shotguns, Net Guns, Mind Control Rays, Saxophones, Magnet Guns, and much, much more. This is DUCK GAME. Don't blink.
Rhome
Rhome is a first-person dark atmospheric exploration game made by students at SMU Guildhall. Players navigate an increasingly chaotic and psychologically unnerving environment to reveal the fate of Hailey Rhome. Proceeds from your purchase on Steam go to support student development.
AfterHours
Experience psychological horror in a large abandoned hospital. Hide, explore and survive from a mysterious creature living in the ruins of this hospital.
Prismata
A perfect-information strategy game inspired by RTS, deckbuilders, and board games. Choose from three distinct technology classes and outwit your foes by snowballing your starting resources into a powerful cybernetic army. ABSOLUTELY NO PAY-TO-WIN.
Yume Nikki
This is a game in which you traverse the extremely dark world inside a dream.
Cube Racer
Cube Racer is a round based multiplayer racing game with cubes. Every round, all players race against each other to the finish line. Before every round, the players get to build one or more obstacles on the map. In the next round, all players have to pass all the obstacles, which have been built yet.
Slap The Fly
You will embody a fly, a spider, a bee or a human. Your mission thus is to survive or to slap the fly !
Idling to Rule the Gods
Idling to Rule the Gods is a free to play Idle-Game with a lot of content and some Minigames. Depending on your play-style, you can play it fast or slow. Either way it can be fun for hundreds of hours!
Perfect Vermin
Your task is simple, exterminate all vermin. The sledge hammer you have been provided is capable of destroying almost all office appliances and furniture that may be uncooperative. Your time is running out.
Friendly Fire
Can you save the world from an unknown destiny?
The one who pulls out the sword will be crowned king
Are you The Rightful King™ or just a filthy peasant? The sword is waiting for you to lift it, but it gets longer and heavier each time some else succeeds...
SORE
Mystical puzzle quest game in a gloomy minimalism style will tell you a story of a person who's got himself into a camera, and from which there is no way out it seems. Experimental gameplay diluted with a pinch of a philosophy, that's what SORE is.
Pink Heaven
A certain office lady is back!!
Super Bernie World
Join Bernie's movement and transform the United States in this free retro 2D platformer.
The Jackbox Megapicker
The Jackbox Megapicker is a game launcher for all of your Jackbox games. This free bit of software will allow you to launch all owned games from one convenient location. This means that you will no longer need to switch between Party Packs to start playing the games you love most.
Most played games like Oh...Sir! Prototype on Steam
Take a look at the top games like Oh...Sir! Prototype that are currently attracting the largest player bases on the Steam platform, as of June 17th 2025.
1. NGU IDLE
Similarity 51% NGU Idle is a Free To Play Idle game that's full of weird humor, tons of upgrades and hundreds of hours of content! Try out NGU Idle today and experience the joy of Numbers Going Up! NGU IDLE is a free to play, idler and indie game developed and published by 4G. Released on October 01st 2019 has received 12,068 reviews of which 11,564 were positive and 504 were negative resulting in an impressive rating of 9.3 out of 10. The game has hit the top spot as the #1 most played game like Oh...Sir! Prototype, thanks to its 3,323 peak concurrent players over the last day.
9.3
11,564
504
3,323
players
2. Idling to Rule the Gods
Similarity 46% Idling to Rule the Gods is a free to play Idle-Game with a lot of content and some Minigames. Depending on your play-style, you can play it fast or slow. Either way it can be fun for hundreds of hours! Idling to Rule the Gods is a free to play, indie and simulation game developed and published by Shugasu GmbH. Released on May 27th 2016 has received 1,916 reviews of which 1,638 were positive and 278 were negative resulting in a rating of 8.2 out of 10. While seeing 1,100 players online at once in the last 24 hours, this game is currently ranked #2 among games like Oh...Sir! Prototype based on player count.
8.2
1,638
278
1,100
players
3. Satisfactory Modeler
Similarity 64% Model your Satisfactory builds. Set up your machines however you like, adding optional limits to the number of any of those machines and the tool will calculate how the parts will flow and how many of each machine type are getting used. Satisfactory Modeler is a free to play, indie and simulation game developed and published by David Price. Released on September 17th 2024 has received 849 reviews of which 825 were positive and 24 were negative resulting in an impressive rating of 9.1 out of 10. While seeing 593 players online at once in the last 24 hours, this game is currently ranked #3 among games like Oh...Sir! Prototype based on player count.
9.1
825
24
593
players
4. Poker Championship
Similarity 55% Play the most authentic Texas Hold’em Poker App. Fair play guaranteed by the officially certified Random Number Generator implemented for every hand dealing. Compete with outstanding players throughout the world in real time and be the World Champion! Poker Championship is a free to play, indie and massively multiplayer game developed and published by BBstudio Inc.. Released on September 25th 2019 has received 2,522 reviews of which 2,030 were positive and 492 were negative resulting in a rating of 7.8 out of 10. With 238 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like Oh...Sir! Prototype.
7.8
2,030
492
238
players
5. Cube Racer
Similarity 46% Cube Racer is a round based multiplayer racing game with cubes. Every round, all players race against each other to the finish line. Before every round, the players get to build one or more obstacles on the map. In the next round, all players have to pass all the obstacles, which have been built yet. Cube Racer is a indie, action and casual game developed and published by Simon Blasen. Released on October 30th 2017 has received 1,980 reviews of which 1,791 were positive and 189 were negative resulting in a rating of 8.6 out of 10. With 199 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like Oh...Sir! Prototype.
8.6
1,791
189
199
players
6. SpeedRunners
Similarity 54% Cut-throat multiplayer running game that pits 4 players against each other, locally and/or online. Run, jump, swing around, and use devious weapons and pick-ups to knock opponents off-screen! One of the most competitive games you'll ever play. SpeedRunners is a multiplayer, racing and local multiplayer game developed by DoubleDutch Games and published by tinyBuild. Released on April 19th 2016 has received 36,740 reviews of which 34,525 were positive and 2,215 were negative resulting in an impressive rating of 9.2 out of 10. With 183 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like Oh...Sir! Prototype.
9.2
34,525
2,215
183
players
7. The Jackbox Megapicker
Similarity 46% The Jackbox Megapicker is a game launcher for all of your Jackbox games. This free bit of software will allow you to launch all owned games from one convenient location. This means that you will no longer need to switch between Party Packs to start playing the games you love most. The Jackbox Megapicker is a free to play, utilities and party game developed and published by Jackbox Games and Inc.. Released on July 29th 2024 has received 706 reviews of which 539 were positive and 167 were negative resulting in a rating of 7.3 out of 10. With 163 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like Oh...Sir! Prototype.
7.3
539
167
163
players
8. Time Clickers
Similarity 47% Time Clickers is what's called an 'incremental game'. There's always a fun upgrade to look forward to, and the numbers keep getting bigger! Hire a team to fight for you, even when you're offline! Time Clickers is a clicker, free to play and casual game developed by Proton Studio Inc and published by . Released on July 23rd 2015 has received 5,048 reviews of which 4,420 were positive and 628 were negative resulting in a rating of 8.5 out of 10. With 135 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like Oh...Sir! Prototype.
8.5
4,420
628
135
players
9. Duck Game
Similarity 46% Enter the futuristic year of 1984, an age where ducks run wild in a frantic battle for glory. Blast your friends with Shotguns, Net Guns, Mind Control Rays, Saxophones, Magnet Guns, and much, much more. This is DUCK GAME. Don't blink. Duck Game is a multiplayer, funny and local multiplayer game developed by Landon Podbielski and published by CORPTRON GAMES CORP.. Released on June 04th 2015 has received 38,476 reviews of which 37,172 were positive and 1,304 were negative resulting in an impressive rating of 9.5 out of 10. With 124 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like Oh...Sir! Prototype.
9.5
37,172
1,304
124
players
10. Zero-K
Similarity 46% With 100+ truly unique units, Zero-K is an RTS of freedom and creativity, tempered by a decade of refinement. Sculpt land into a castle and throw invaders off it with a Jugglenaut. Explore a massive campaign, solo or co-op. Hop online for epic 32 player battles or fast paced 1v1, on 100s of maps. Zero-K is a strategy, free to play and rts game developed and published by Zero-K Team. Released on April 27th 2018 has received 3,922 reviews of which 3,678 were positive and 244 were negative resulting in an impressive rating of 9.0 out of 10. The game currently holds the #10 spot among the most played games like Oh...Sir! Prototype.
9.0
3,678
244
92
players
Best deals on games like Oh...Sir! Prototype on Steam
Discover fantastic savings with the best discounts on a variety of games like Oh...Sir! Prototype available on Steam right now, updated on June 17th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like Oh...Sir! Prototype.
1. Fibbage XL
Similarity 50% NOTE: This game first appeared in The Jackbox Party Pack. It’s Fibbage XL – The Hilarious Bluffing Party Game in standalone form! Fool your friends with your lies, avoid theirs, and find the (usually outrageous) truth. “The mayor of Rabbit Hash, Kentucky is a ____.” Baby? Rabbit? Ham sandwich? Go! Fibbage XL is a strategy, casual and indie game developed and published by Jackbox Games and Inc.. Released on March 24th 2016 has received 318 reviews of which 301 were positive and 17 were negative resulting in a rating of 8.7 out of 10. Featuring a massive 98% discount, this game currently holds the #1 spot in the best deals for games like Oh...Sir! Prototype.
8.7
301
17
-98%
9.99€
0.22€
2. Drawful 2
Similarity 48% For 3-8 players and an audience of thousands! Your phones or tablets are your controllers! The game of terrible drawings and hilariously wrong answers. Drawful 2 is a local multiplayer, party and multiplayer game developed and published by Jackbox Games and Inc.. Released on June 20th 2016 has received 4,019 reviews of which 2,983 were positive and 1,036 were negative resulting in a rating of 7.2 out of 10. Thanks to its incredible 97% discount, this game is now the #2 best deal in games like Oh...Sir! Prototype.
7.2
2,983
1,036
-97%
9.99€
0.32€
3. TowerFall Ascension
Similarity 51% TowerFall Ascension is the definitive version of the hit archery combat game. Inspired by classics from the golden age of couch multiplayer, it's a 4-player local party game centering around hilarious, intense versus matches. The core mechanics are simple and accessible, but hard to master and combat is fierce. TowerFall Ascension is a local multiplayer, indie and 2d fighter game developed by Maddy Makes Games Inc., Extremely OK Games and Ltd. and published by Maddy Makes Games Inc.. Released on March 11th 2014 has received 3,410 reviews of which 3,236 were positive and 174 were negative resulting in an impressive rating of 9.1 out of 10. Thanks to its incredible 96% discount, this game is now the #3 best deal in games like Oh...Sir! Prototype.
9.1
3,236
174
-96%
14.79€
0.71€
4. TowerFall Ascension
Similarity 51% TowerFall Ascension is the definitive version of the hit archery combat game. Inspired by classics from the golden age of couch multiplayer, it's a 4-player local party game centering around hilarious, intense versus matches. The core mechanics are simple and accessible, but hard to master and combat is fierce. TowerFall Ascension is a game developed and published by . Released on March 11th 2014 has received 3,410 reviews of which 3,236 were positive and 174 were negative resulting in an impressive rating of 9.1 out of 10. Currently offered at a significant 96% discount, this title has earned the #4 position in the best deals for games like Oh...Sir! Prototype.
9.1
3,236
174
-96%
14.79€
0.71€
5. Fibbage XL
Similarity 50% NOTE: This game first appeared in The Jackbox Party Pack. It’s Fibbage XL – The Hilarious Bluffing Party Game in standalone form! Fool your friends with your lies, avoid theirs, and find the (usually outrageous) truth. “The mayor of Rabbit Hash, Kentucky is a ____.” Baby? Rabbit? Ham sandwich? Go! Fibbage XL is a game developed and published by . Released on March 24th 2016 has received 318 reviews of which 301 were positive and 17 were negative resulting in a rating of 8.7 out of 10. Currently offered at a significant 98% discount, this title has earned the #5 position in the best deals for games like Oh...Sir! Prototype.
8.7
301
17
-98%
9.99€
0.22€
6. STARWHAL
Similarity 58% The local multi-player space narwhal fighting game that has rocked the internet is finally ready for its big debut in a fully loaded release! Flop it out with 1-4 players in a retro, epic narwhal battle in space! The heart-piercing action is furious and unrelenting. STARWHAL will change your life. STARWHAL is a local multiplayer, indie and funny game developed and published by Breakfall. Released on September 29th 2014 has received 700 reviews of which 622 were positive and 78 were negative resulting in a rating of 8.4 out of 10. Currently offered at a significant 90% discount, this title has earned the #6 position in the best deals for games like Oh...Sir! Prototype.
8.4
622
78
-90%
9.99€
1.06€
7. Drawful 2
Similarity 48% For 3-8 players and an audience of thousands! Your phones or tablets are your controllers! The game of terrible drawings and hilariously wrong answers. Drawful 2 is a game developed and published by . Released on June 20th 2016 has received 4,019 reviews of which 2,983 were positive and 1,036 were negative resulting in a rating of 7.2 out of 10. Currently offered at a significant 97% discount, this title has earned the #7 position in the best deals for games like Oh...Sir! Prototype.
7.2
2,983
1,036
-97%
9.99€
0.32€
8. Quiplash
Similarity 50% For 3-8 Players and an Audience of thousands! Your phones or tablets are your controllers! The gut-busting, say-anything, no-rules party game! Quiplash is a casual, multiplayer and comedy game developed and published by Jackbox Games and Inc.. Released on June 30th 2015 has received 2,188 reviews of which 1,962 were positive and 226 were negative resulting in a rating of 8.6 out of 10. Currently offered at a significant 88% discount, this title has earned the #8 position in the best deals for games like Oh...Sir! Prototype.
8.6
1,962
226
-88%
9.99€
1.29€
9. Divekick
Similarity 47% Divekick is the world’s first two-button fighting game. It distills the essence of the fighting game genre into just two buttons with no d-pad directional movement. Includes two extra playable characters: Fencer from Nidhogg and Johnny Gat from Saints Row! Divekick is a fighting, indie and 2d fighter game developed and published by Iron Galaxy Studios. Released on August 20th 2013 has received 1,818 reviews of which 1,522 were positive and 296 were negative resulting in a rating of 8.0 out of 10. Currently offered at a significant 87% discount, this title has earned the #9 position in the best deals for games like Oh...Sir! Prototype.
8.0
1,522
296
-87%
3.99€
0.52€
10. ROCKETSROCKETSROCKETS
Similarity 50% ROCKETS fire ROCKETS at ROCKETS in this action-arcade, arena-combat, gorgeous festival-of-fireworks! It's dogfighting meets figure-skating in space with local multiplayer and single-player fast-paced action modes plus a ZEN MODE where ROCKETS learn to LOVE. ROCKETSROCKETSROCKETS is a indie, action and casual game developed by Radial Games Corp, Loren Bednar, Dr. Kimberly Voll and Lindsay Jorgensen and published by Radial Games Corp. Released on May 01st 2015 has received 544 reviews of which 405 were positive and 139 were negative resulting in a rating of 7.1 out of 10. Currently offered at a significant 87% discount, this title has earned the #10 position in the best deals for games like Oh...Sir! Prototype.
7.1
405
139
-87%
6.99€
0.93€
Free games like Oh...Sir! Prototype on Steam
Check out this fantastic list of free-to-play games like Oh...Sir! Prototype you can enjoy on Steam right now, updated on June 17th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play games like Oh...Sir! Prototype.
1. NGU IDLE
Similarity 51% NGU Idle is a Free To Play Idle game that's full of weird humor, tons of upgrades and hundreds of hours of content! Try out NGU Idle today and experience the joy of Numbers Going Up! NGU IDLE is a free to play, idler and indie game developed and published by 4G. Released on October 01st 2019 has received 12,068 reviews of which 11,564 were positive and 504 were negative resulting in an impressive rating of 9.3 out of 10. With 3,323 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like Oh...Sir! Prototype.
9.3
11,564
504
3,323
players
2. Idling to Rule the Gods
Similarity 46% Idling to Rule the Gods is a free to play Idle-Game with a lot of content and some Minigames. Depending on your play-style, you can play it fast or slow. Either way it can be fun for hundreds of hours! Idling to Rule the Gods is a free to play, indie and simulation game developed and published by Shugasu GmbH. Released on May 27th 2016 has received 1,916 reviews of which 1,638 were positive and 278 were negative resulting in a rating of 8.2 out of 10. Thanks to its free to play tag and a daily player base of 1,100, this game has secured the #2 spot in the ranking of free games like Oh...Sir! Prototype.
8.2
1,638
278
1,100
players
3. Satisfactory Modeler
Similarity 64% Model your Satisfactory builds. Set up your machines however you like, adding optional limits to the number of any of those machines and the tool will calculate how the parts will flow and how many of each machine type are getting used. Satisfactory Modeler is a free to play, indie and simulation game developed and published by David Price. Released on September 17th 2024 has received 849 reviews of which 825 were positive and 24 were negative resulting in an impressive rating of 9.1 out of 10. Thanks to its free to play tag and a daily player base of 593, this game has secured the #3 spot in the ranking of free games like Oh...Sir! Prototype.
9.1
825
24
593
players
4. Poker Championship
Similarity 55% Play the most authentic Texas Hold’em Poker App. Fair play guaranteed by the officially certified Random Number Generator implemented for every hand dealing. Compete with outstanding players throughout the world in real time and be the World Champion! Poker Championship is a free to play, indie and massively multiplayer game developed and published by BBstudio Inc.. Released on September 25th 2019 has received 2,522 reviews of which 2,030 were positive and 492 were negative resulting in a rating of 7.8 out of 10. Attracting a solid base of 238 players due to its free access, this strategy game has achieved the #4 position in the best free games like Oh...Sir! Prototype.
7.8
2,030
492
238
players
5. Cube Racer
Similarity 46% Cube Racer is a round based multiplayer racing game with cubes. Every round, all players race against each other to the finish line. Before every round, the players get to build one or more obstacles on the map. In the next round, all players have to pass all the obstacles, which have been built yet. Cube Racer is a indie, action and casual game developed and published by Simon Blasen. Released on October 30th 2017 has received 1,980 reviews of which 1,791 were positive and 189 were negative resulting in a rating of 8.6 out of 10. Attracting a solid base of 199 players due to its free access, this strategy game has achieved the #5 position in the best free games like Oh...Sir! Prototype.
8.6
1,791
189
199
players
6. The Jackbox Megapicker
Similarity 46% The Jackbox Megapicker is a game launcher for all of your Jackbox games. This free bit of software will allow you to launch all owned games from one convenient location. This means that you will no longer need to switch between Party Packs to start playing the games you love most. The Jackbox Megapicker is a free to play, utilities and party game developed and published by Jackbox Games and Inc.. Released on July 29th 2024 has received 706 reviews of which 539 were positive and 167 were negative resulting in a rating of 7.3 out of 10. Attracting a solid base of 163 players due to its free access, this strategy game has achieved the #6 position in the best free games like Oh...Sir! Prototype.
7.3
539
167
163
players
7. Time Clickers
Similarity 47% Time Clickers is what's called an 'incremental game'. There's always a fun upgrade to look forward to, and the numbers keep getting bigger! Hire a team to fight for you, even when you're offline! Time Clickers is a clicker, free to play and casual game developed by Proton Studio Inc and published by . Released on July 23rd 2015 has received 5,048 reviews of which 4,420 were positive and 628 were negative resulting in a rating of 8.5 out of 10. Attracting a solid base of 135 players due to its free access, this strategy game has achieved the #7 position in the best free games like Oh...Sir! Prototype.
8.5
4,420
628
135
players
8. Zero-K
Similarity 46% With 100+ truly unique units, Zero-K is an RTS of freedom and creativity, tempered by a decade of refinement. Sculpt land into a castle and throw invaders off it with a Jugglenaut. Explore a massive campaign, solo or co-op. Hop online for epic 32 player battles or fast paced 1v1, on 100s of maps. Zero-K is a strategy, free to play and rts game developed and published by Zero-K Team. Released on April 27th 2018 has received 3,922 reviews of which 3,678 were positive and 244 were negative resulting in an impressive rating of 9.0 out of 10. The game currently holds the #8 spot among the most played free games like Oh...Sir! Prototype.
9.0
3,678
244
92
players
9. Picross Touch
Similarity 48% Find the hidden image in this fun and addictive logic puzzle game. All puzzles have unique solutions, ensuring 100% logically solvable puzzle grids. Picross Touch is a puzzle, free to play and casual game developed by Jon Gallant and published by jgallant. Released on August 24th 2016 has received 1,691 reviews of which 1,595 were positive and 96 were negative resulting in a rating of 9.0 out of 10. The game currently holds the #9 spot among the most played free games like Oh...Sir! Prototype.
9.0
1,595
96
91
players
10. IOSoccer
Similarity 51% IOSoccer is a free non-commercial competitive third-person online multiplayer soccer game that offers unparalleled freedom in ball control and gameplay depth. IOSoccer is a free to play, sports and multiplayer game developed and published by IOSoccer Team. Released on June 08th 2018 has received 2,809 reviews of which 2,287 were positive and 522 were negative resulting in a rating of 7.9 out of 10. The game currently holds the #10 spot among the most played free games like Oh...Sir! Prototype.
7.9
2,287
522
84
players