Games Like Last Call BBS

Opus Magnum is the latest open-ended puzzle game from Zachtronics, the creators of SpaceChem, Infinifactory, and SHENZHEN I/O. Design and build machines that assemble potions, poisons, and more using the alchemical engineer’s most advanced tool: the transmutation engine!

Why similar: Automation 48.6%, Puzzle 19.6%, Logic 16.3%, Simulation 5.1%, Building 4.7%

Why You'll Like It: It offers an incredibly satisfying mechanical puzzle experience where you build intricate machines to transmute elements.

BUILD CIRCUITS. WRITE CODE. RTFM.

Why similar: Automation 47.8%, Logic 20.3%, Puzzle 12.7%, Solitaire 5% ★, Sandbox 4.9%

Why You'll Like It: This game perfectly captures the hardware-level programming and circuit design challenges found in the Zachtronics catalog.

Zachtronics is back with an ambitious new design-based puzzle game. Take on the role of a Reactor Engineer working for SpaceChem, the leading chemical synthesizer for frontier colonies. Construct elaborate factories to transform raw materials into valuable chemical products!

Why similar: Puzzle 35%, Automation 34.3%, Logic 25.4%, Building 2%, Simulation 1.4%

Why You'll Like It: This is the quintessential Zachtronics automation puzzle game that defined the genre's focus on complex, multi-step chemical engineering.

The Zachtronics Solitaire Collection is here! Inside you will find all seven Zachtronics solitaire games, updated with new 4K graphics, plus one brand new Tarot-themed solitaire variant only available here.

Why similar: Solitaire 72.7% ★, Card Game 21.7%, Casual 2.7%, 2D 2.4%, Singleplayer 0.5%

Why You'll Like It: It contains the various solitaire variants featured in Zachtronics games, providing the same relaxing yet strategic downtime found in the seed game.

The year is 1997. You used to be a hacker, but now you have the phage. You made a deal: one hack, one dose. There’s nothing left to lose… except your life.

Why similar: Automation 48.2%, Logic 20.3%, Puzzle 17.3%, Sandbox 8.4%, Simulation 5.6%

Why You'll Like It: It features a gritty, retro-hacker aesthetic paired with deep assembly-style programming puzzles that feel right at home with the BBS theme.

Infinifactory is a sandbox puzzle game by Zachtronics, the creators of SpaceChem and Infiniminer. Build factories that assemble products for your alien overlords, and try not to die in the process.

Why similar: Automation 38.1%, Building 17.3%, Sandbox 16.1%, Puzzle 15.9%, Logic 8.1%

Why You'll Like It: This 3D automation game challenges you to build factories that assemble alien products, mirroring the spatial logic of Last Call BBS.

TIS-100 is an open-ended programming game by Zachtronics, the creators of SpaceChem and Infinifactory, in which you rewrite corrupted code segments to repair the TIS-100 and unlock its secrets. It’s the assembly language programming game you never asked for!

Why similar: Puzzle 34%, Logic 28.3%, Automation 27.1%, Simulation 10%, Singleplayer 0.6%

Why You'll Like It: A minimalist, hardcore assembly programming game that strips away the fluff to focus entirely on logic and code optimization.

Learn CPU architecture with puzzles

Why similar: Logic 33.2%, Automation 27.9%, Puzzle 15.3%, Building 9.9%, Simulation 6.9%

Why You'll Like It: It takes you from building simple logic gates all the way to creating a functional computer, perfect for fans of hardware-level puzzles.

Build hardware. Solve puzzles. From the creator of Manufactoria, a new open-ended puzzle game set in Silicon Valley's first startup.

Why similar: Puzzle 52.4%, Simulation 45.9%, Singleplayer 1.7%

Why You'll Like It: This game focuses on the architectural side of computing, challenging you to design circuits that meet specific performance constraints.

SOKOBOT is an open-ended puzzle game where you place down cute robots, give them commands, and create infinitely-looping assembly lines that combine shapes together!

Why similar: Automation 36.1%, Logic 18.2%, Sandbox 15.1%, Building 14.5%, Puzzle 11.6%

Why You'll Like It: A clever automation puzzle game where you program a robot to move blocks, requiring precise timing and logic.

Automate swarms of office workers to solve puzzles inside your very own parallel computer made of people. A thrilling followup to the award winning Human Resource Machine. Now with more humans!

Why similar: Puzzle 32.5%, Automation 28.9%, Logic 26.8%, Simulation 11.2%, Singleplayer 0.6%

Why You'll Like It: The sequel to Human Resource Machine, it expands the programming logic to handle multiple workers simultaneously in complex, grid-based puzzles.

Program little office workers to solve puzzles. Be a good employee! The machines are coming... for your job. From the creators of World of Goo and Little Inferno.

Why similar: Automation 38.8%, Puzzle 29.7%, Logic 14.2%, Simulation 7.7%, Sandbox 5.7%

Why You'll Like It: A visual programming game that uses office-themed tasks to teach the fundamentals of assembly language and logic.

Set in a post-apocalyptic future, The Signal State puts your logic skills to the test with complex puzzles inspired by modular synthesizers. Repair machines, rebuild an abandoned farm, and be part of a revolution that will change the fate of agriculture once and for all.

Why similar: Automation 39.9%, Logic 22.7%, Sandbox 16.3%, Puzzle 13.6%, Simulation 5.7%

Why You'll Like It: A modular synthesizer-inspired puzzle game that requires you to patch signals and solve logic problems in a retro-futuristic setting.

You’re a machine learning specialist who makes neural networks but your cat seems to be better at it. Now you must solve puzzles to build a cat-to-human translation system (who knows what else this cat is capable of!). Earn a fortune, buy kickass cat outfits, learn how machine learning really works!

Why similar: Puzzle 26.4%, Sandbox 24.7%, Building 23.2%, Simulation 13.8%, Logic 11.9%

Why You'll Like It: This game uses machine learning concepts to create engaging, automation-heavy puzzles with a charming, accessible interface.

Virtual Circuit Board is the sandbox drawing-based logic simulator where you can build, program, decorate, and simulate anything from simple monochrome circuits to complex and colorful computers. Play with digital logic in this sandbox-only experience.

Why similar: Automation 31.5%, Sandbox 18.2%, Logic 18.2%, Building 16%, Puzzle 7.9%

Why You'll Like It: A sandbox simulation that allows you to build complex digital circuits and systems without the constraints of traditional puzzle objectives.

Retro Gadgets is a sandbox where you build, code, and customize gadgets inspired by old-school electronics.

Why similar: Automation 31.4%, Building 13.2%, 1990's 11.6%, Sandbox 11%, Logic 8.9%

Why You'll Like It: A creative sandbox where you build and program your own retro-style electronics, perfectly matching the 'building' aspect of the seed game.

Retrace the path of the Prime Mover to uncover the story of the Byte of Burden! Prime Mover is an open-ended puzzle game about designing circuit boards.

Why similar: Puzzle 54.6%, Simulation 28.1%, Pixel Graphics 16.3%, Singleplayer 1%

Why You'll Like It: You design circuit boards to solve increasingly difficult logic puzzles, emphasizing the same optimization-heavy gameplay as Zachtronics titles.

Build the most advanced operating system ever created! Can you master the fictional simulation language of this mind-bending machine? Design circuits, automate UBITS (coloured mobile data blocks), and optimize your system. The Admin is always watching, and he’s not what he seems.

Why similar: Automation 38.6%, Sandbox 15%, Building 13.4%, Logic 13.4%, Puzzle 10.3%

Why You'll Like It: This simulation game focuses on programming and automation, offering a challenging experience for those who enjoy the Zachtronics style.

A rich and challenging physics-based puzzle /logic /construction /programming game! Master ballistics, fluid mechanics, thermodynamics, chemical and nuclear reactions, use automation bricks, build structures, machines, vehicles, produce power, solve puzzles, pierce the fog and defeat CHR$!

Why similar: Automation 42%, Building 16.7%, Logic 13.5%, Puzzle 9.7%, Retro 8.2%

Why You'll Like It: It features a unique, retro-computing aesthetic and physics-based puzzle mechanics that feel like a lost game from the BBS era.

shapez is an easy-going, minimalistic factory building game about the automation of shapes through extraction and satisfying production lines. Adapt to increasingly complex shapes and grow your factory across an infinitely expanding map. Your only limitation is your creativity!

Why similar: Automation 48.6%, Sandbox 18.7%, Building 11.9%, Logic 8.9%, Puzzle 6.2%

Why You'll Like It: A minimalist factory-building game that focuses purely on the flow of resources and the logic of processing shapes.

Comet 64 is a programming puzzle game. The year is 1984. All you got is a Comet 64 home computer and the operator's manual it came with.

Why similar: Automation 24.6%, Retro 14.5%, Sandbox 13.7%, Building 13.4%, Logic 12.3%

Why You'll Like It: A retro-themed programming puzzle game that forces you to work within the constraints of a limited, 8-bit-style computer environment.

Hacknet is an immersive, terminal-based hacking simulator for PC. Dive down a rabbit hoIe as you follow the instructions of a recently deceased hacker, whose death may not have been the accident the media reports.

Why similar: Logic 63.8%, Simulation 24.4%, 2D 10.2%, Singleplayer 1.6%

Why You'll Like It: This terminal-based hacking simulator provides an immersive, retro-tech experience that makes you feel like a genuine computer expert.

Bitburner is a programming-based incremental game. Write scripts in JavaScript to automate gameplay, learn skills, play minigames, solve puzzles, and more in this cyberpunk text-based incremental RPG.

Why similar: Automation 72.2%, Sandbox 11.2%, Puzzle 9.9%, Simulation 6.2%, Singleplayer 0.5%

Why You'll Like It: A text-based, open-source programming game where you write actual scripts to hack servers, capturing the authentic feel of a 90s terminal.

Invent a new computer! Logic World is a first-person sandbox simulation game that's all about digital logic. Play alone or with friends, design unique machines, build up layers of complexity, and experience the joy of circuits!

Why similar: Automation 35.6%, Building 17.3%, Sandbox 17.2%, Logic 14.9%, Puzzle 10.8%

Why You'll Like It: A deep, educational building game that lets you construct complex digital logic circuits in a 3D environment.

The original physics building game is now on PC! Use minimal tools to build an infinite variety of puzzle-solving machines. Featuring over 70 THOUSAND user-generated levels, and includes the sequel Fantastic Contraption Classic 2!

Why similar: Building 24.7%, Automation 18.5%, Sandbox 17%, Puzzle 15%, Logic 12.5%

Why You'll Like It: These physics-based building games require creative engineering to solve puzzles, sharing the 'sandbox' spirit of Last Call BBS.

Kaizen is an open-ended puzzle automation game from the original Zachtronics team, set in 1980s Japan. Design, build, and optimize production lines to create iconic products, like calculators, camcorders, and arcade machines.

Why similar: Automation 28%, Solitaire 20.9% ★, Logic 14.3%, Building 9.2%, Retro 8.8%

In Autonauts you must build, create, and automate. Start by establishing a colony, crafting bots and teaching them via Scratch-style programming to build an ever evolving autonomous paradise of agriculture, industry and enlightenment.

Why similar: Automation 61.3%, Sandbox 14.8%, Building 13.1%, Simulation 8.2%, Casual 2.4%

Why You'll Like It: It combines colony management with visual programming, allowing you to automate entire worlds through simple logic scripts.

Welcome to a realm of pure logic, where rules are rules and the next step can always be deduced.

Why similar: Logic 39.9%, Retro 24.2%, Puzzle 19.7%, Pixel Graphics 10%, 2D 4.4%

MHRD is a hardware design game, in which you design various hardware circuits in a hardware description language. The hardware circuits you design get more complex as you go until you create a fully functional CPU design.

Why similar: Puzzle 52.7%, Simulation 47.3%

Why You'll Like It: A hardware design game that tasks you with building a CPU from scratch using logic gates, ideal for those who enjoy the technical depth of BBS.

Pony Island is a suspense puzzle game in disguise. You are in limbo, trapped in a malevolent and malfunctioning arcade machine devised by the devil himself. It is not a game about ponies.

Why similar: Puzzle 56.7%, Pixel Graphics 36.6%, 2D 5.3%, Singleplayer 1.5%

Why You'll Like It: A meta-puzzle game that uses a retro, glitchy aesthetic to hide deep, logic-based programming challenges.

Replicube is an open-ended programming puzzle game/toy about writing code to replicate 3D voxel-based objects. Solve puzzles, pursue leaderboard glory, or just make art to share with the in-game community.

Why similar: Sandbox 34%, Puzzle 24.7%, Retro 15.6%, Pixel Graphics 12.9%, Simulation 12.8%

Assemble your robot squad, construct their AI and send them in the battle arena to see your strategy play out. Iterate, improve and repeat until you outsmart all your opponents and friends online.

Why similar: PvP 43.9%, Logic 18.2%, Multiplayer 15.6%, Automation 15%, Simulation 5.5%

Why You'll Like It: You program the AI of your robot squad before the match starts, requiring you to anticipate enemy behavior through logic flowcharts.

"Falling sand" style particle sandbox, now with circuits and stickmen!

Why similar: Automation 32.1%, Sandbox 20.8%, Logic 14.1%, Building 9.4%, Pixel Graphics 9.3%

Retro Falling Sand Puzzle Game

Why similar: 1990's 21.8%, Sandbox 16.4%, Logic 13.7%, Puzzle 13.3%, Retro 13.1%

A collection of mysterious solitaires. The solitaires included vary from fairly standard cardgames to funky reimplementations of other games in solitaire form.

Why similar: Solitaire 45.2% ★, Card Game 17.5%, Logic 17.1%, Puzzle 13%, Pixel Graphics 4.9%

Turn a rundown laundromat into a RADICAL ’90s arcade. Featuring over 35 fully playable arcade games, you must manage your business, and reinvest profits to expand your neon kingdom. Balance dirty laundry with pixel-perfect fun as you build the greatest arcade empire ever.

Why similar: 1990's 36.2%, Retro 20.9%, Arcade 12.2%, Pixel Graphics 8.8%, PvP 8.2%

NERTS! Online is a fast-paced competitive solitaire game for you and up to five of your friends, played the same way we play it at the Zachtronics office!

Why similar: Solitaire 60.2% ★, Card Game 18.5%, PvP 13.7%, Multiplayer 3.4%, 2D 2.1%

Automate It is a factory-building puzzle game that challenges players to find clever solutions within size, power, and time constraints. Design, build, and share your own puzzles with other players. If you want to build it - choose Automate It.

Why similar: Automation 35.7%, Sandbox 19.5%, Building 13.4%, Logic 12.2%, Puzzle 10.6%

A sandbox logic puzzle game with a nostalgic temperament. You can experience the endless fun of designing automata here.

Why similar: Automation 46.6%, Building 19.5%, Puzzle 14%, Retro 11.6%, Simulation 6.3%

Look through someone else’s computer. Inspired by early “escape room” flash games.

Why similar: Puzzle 71.3%, Simulation 27.4%, Singleplayer 1.3%

Enter the most advanced challenge laboratory of today's games, where electronics and logic merge into challenges that will captivate your mind and awaken the engineer within you!

Why similar: Automation 44.4%, Logic 20.5%, Puzzle 20.2%, Simulation 10.9%, Casual 3.9%

Welcome to "Purple Place - Classic Games" a fun-filled game where you'll embark on three exciting adventures like good old times! Get ready to immerse yourself in the world of creativity and challenge.

Why similar: Solitaire 27% ★, Retro 20.6%, Logic 19.9%, Puzzle 13.9%, Old School 8.7%

Unleash your brainpower in Linkito and ignite the insurgency! Link, build, solve, defuse, and decode by using your logic. Craft your own challenges in the level editor or tackle community creations.

Why similar: Automation 37.2%, Logic 21.9%, Sandbox 19.9%, Puzzle 12.5%, Simulation 5.4%

Use the MOLEK-SYNTEZ to create small molecules with various pharmacological effects from the comfort of your small Romanian apartment.

Why similar: Automation 51.9%, Puzzle 24.1%, Simulation 14.8%, Logic 8.6%, Singleplayer 0.7%

Super Plexis is a cross-platform multiplayer action puzzler inspired by classic console puzzle games. Play online with up to 4 players in a variety of game modes.

Why similar: 1990's 26.1%, Puzzle 20.3%, Retro 15.2%, Pixel Graphics 12.7%, PvP 10.4%

A game about building emulators! Implement your own NEEES core in JavaScript, get instant feedback with unit/video tests, build the graphics unit in real time, learn 6502 assembly, debug test ROMs, and have fun with the included homebrew games!

Why similar: Logic 42.2%, Puzzle 20.2%, Retro 15.8%, Simulation 11.6%, Pixel Graphics 9.9%

Okay, Pedro is AWOL, and you have to get this LAN Party set up at the Game Store for the session later. Connect cables, install software, and solve puzzles all while you and the gang uncover the mystery of your missing friend.

Why similar: 1990's 66%, Puzzle 29.8%, Simulation 3%, Singleplayer 1.2%

Break into the Landfall Archives to steal and play previously unreleased games, demos, interactive slide shows, and even an unreleased version of Totally Accurate Battle Simulator from 2017!

Why similar: Sandbox 42%, PvP 30.4%, Simulation 19.2%, Casual 6.8%, Singleplayer 1.7%

The Balls are Back! The legendary 90s pinball game Balls of Steel returns to PC in all of its radical retro glory. Play through 5 classic top-down pinball tables and two BRAND NEW tables in classic BoS Style! Get 7 awesome retro tables in one package, rebuilt to run on modern PC hardware!

Why similar: 1990's 31.3%, Arcade 21.6%, Retro 12.8%, Simulation 12.3%, 2D 8.5%

Get settled into Gear Springs! Gather materials, craft items, go fishing, and battle it out with punch cards in the ruined facility. Don't get distracted though, you've still got to stop the last Craftsman and save the town!

Why similar: Automation 45.2%, Card Game 28.6%, Pixel Graphics 11.8%, Simulation 9.8%, 2D 4.5%

A sci-fi management game where you build and optimize your computer's system from the ground up. Connect and configure interconnected nodes to efficiently download, process, and upload files. Manage your setup, solve system challenges, and become the ultimate system architect

Why similar: Automation 61.6%, Logic 17.4%, Simulation 9.6%, Sandbox 9.5%, 2D 1.9%

Created by zsKnight of ZSNES is this really neat retro game collection containing a fun shuffler story mode and a challenging arcade mode. Features 52 different 8bit style games which includes local competitive multiplayer and various different game modes to play and enjoy.

Why similar: Retro 38%, Arcade 17.8%, Pixel Graphics 16.8%, Old School 12.6%, 2D 6.2%

you have an update for your operating system...

Why similar: Puzzle 24.1%, 1990's 22.4%, Logic 20.8%, Retro 16.4%, Casual 6.6%

Progressbar95 is a unique indie game with a strong nostalgic vibe. It turns vintage GUI elements like panels, buttons and icons into game elements! Simple and addictive gameplay based on dozens of mini-games and puzzles. The game will make you smile!

Why similar: 1990's 28.4%, Retro 16.1%, Logic 13.5%, Puzzle 13.3%, Arcade 10.1%

Word Factori is a word-building game where your only resource is the letter "i". Build a chain of factories to bend, rotate, reflect, and merge "i" into more complex letters. Discover secret letter recipes, unlock hidden word art, and optimize your factory chains for high scores.

Why similar: Automation 36.3%, Logic 18.6%, Sandbox 14.4%, Building 13.2%, Puzzle 11%

Groundbreaking research is encrypted on a computer from the 80's. Look through the computer and search the internet to crack the encryption in this augmented reality puzzle game.

Why similar: Simulation 53.4%, Retro 35.2%, Multiplayer 10.1%, Singleplayer 1.3%

Delve into a gripping world of puzzles, true ciphers on an old PalmPilot system. Will you uncover the Crypt Killer’s confession and bring him to justice, or will he escape the law?

Why similar: Puzzle 33.4%, Retro 27.6%, Simulation 21.5%, Pixel Graphics 11.1%, 2D 6.1%

Transform your childhood home as you build brilliant factories and forge lifelong friendships, then reach for the skies and finally finish your family's dream - your mother's precious rocket ship. Roll up your sleeves, it turns out that saving this town really IS rocket science!

Why similar: Automation 44.7%, Building 19.4%, Sandbox 17.9%, Logic 8.8%, Pixel Graphics 5%

Drop coins, trigger satisfying chain reactions, and collect prizes in this physics-based arcade experience. Inspired by classic coin pusher machines, enjoy a relaxing yet addictive gameplay loop right on your computer.

Why similar: Solitaire 48.7% ★, Retro 17.6%, Arcade 13.5%, Simulation 8.7%, Old School 8%

The spiritual successor to The Incredible Machine from its original designer and programmer. Play 100s of puzzles. Build and share elaborate contraptions with an huge variety of parts and critters.

Why similar: Sandbox 31.3%, Building 24.5%, Puzzle 20.7%, Old School 7.7%, Simulation 7.6%