Top similar games like Simulation: Catalyst:

Hardhat Wombat is a cute puzzle-platformer construction game where deftly stacking blocks of poo can make you number one at number two.

Summoneer is a platformer and puzzle game, where you engineer your own designs.

Join Stuffy on a daunting adventure to discover their roots while "restitching" communities unraveled by tyranny and greed. Build custom levels, style your own Stuffy, and share creations with the Steam community in this charming, 2.5D user-generated content platformer!

Mechanical Trap is a 2D horizontal tower defense game with gravity effects, with a variety of defense towers to collect and use together, a rich map, each enemy has a different way of restraining, and each defense tower has a different function.It's challenging. Do you dare to accept the challenge?

Bulwark is a medieval-themed 2D pixel tower defense game with a dynamic block-based building system. Construct and fortify your castle, manage resources, and recruit troops to defend against waves of enemies. Build, strategize, and adapt in this unique blend of fortress construction and combat.

Star Sonata 2 is a space sandbox MMO that combines elements of action, RPG, and empire creation into a truly unique MMO. Explore the sandbox style universe, build persistent bases, construct trade ships, and even fight your way to the top and claim the Emperor’s Throne!

Qrabbles is a physics based sandbox game where you can build your own worlds, and play in them as a sticky creature.You have a giant amount of building blocks, and infinte space to build your levels, or just have fun with the combination of the elements.

Social First are bringing you a brand new kind of social sandbox MMO! In our free-to-play cross-platform game, you can create your own worlds and challenge your friends to epic adventures. Craft and collect items, create clans, and take part in our exciting events. Join our awesome community now!

Grow arms and legs to transform into a snake, spider, butterfly, or fifty-legged horror - anything you can imagine. Control your creations in a fumblecore dash to solve each puzzle. Learn to swing through the trees, climb sheer cliffs, or even fly.

Blockpocalypse is the shared screen multiplayer party platformer about surviving with your friends... or at least outliving them.

Bob has a dream. Bob wants to climb skyscrapers. To climb skyscrapers, Bob must build skyscrapers. Help Bob fulfill his dreams by building the tallest scalable structures you can imagine! Twist, turn and fiddle with the blocks until you beat that world record height!

Run Die Jump is a platform game where dying can help you move forward. Set your own traps and help to win.

Mechanical Lab is a 2D action game focused on the physical interaction of machines with the environment. Explore, build and experiment to survive in the city of robots long after the end of human civilization.

Build, fly, and battle in Droneboi: Conquest - the ultimate space sandbox game! Explore Conquest, engage in combat, and upgrade your ship. Start your space journey today!

this game is 2d platform survivor game. Once upon a time, there was a small sugar cube, onece they were playing a game with their friends, they were attacked by the tea monster! and the tea monster threw all sugar cubes into it, only our sugar survived (drink your tea without sugar)

After a High_tech artificial intelligence robot named "SH" goes wild, you realize that you can't defeat him alone so you start to make a robot, helping you to stop him.

You’ve been stuck in quarantine lockdown for months now, but a phone call from a desperate, old woman forces you to risk your life to find her! Can you locate her in time!?

Goober Dash: A 2D platformer battle royale where Goobers Run, Jump & Dash to victory! Customize your Goober, dash to outmaneuver opponents, create your own levels, and compete in global time trials. Unlock exclusive skins and celebrate your wins in this action-packed multiplayer Race Royale!

Explore with up to 4 players in a randomly generated world ! Mine, fight, craft and build in this 2D survival game ! You are free to do whatever you want, as long as you do not awaken the demon of the mountains...

Unleash your creativity, design your dreadnought with a variety of modules, and have complete control over the function and style of each module. Command your battleship with wisdom and decisiveness. Gallop in the vast galaxy and destroy all enemies.

Automate, Defend, Repeat: A combination of factory management and tower defense strategy. Build a planet-dominating factory, defend it from disgruntled resource-carrying monsters, and defeat a total of 6 bosses. Once you have done that, select a New Game + modifier and do it again!

Design, Drive, and Destroy! Craft the wildest racers, most insane vehicles, and epic tracks. Outrace your opponent and push them out of your way! Enjoy split-screen racing with up to 4 players!

Create your own distinctive towers, enhance only the necessary components, and experiment with them in quick battle mode. THWN enables you to craft each tower individually using runes that determine the projectile and its effects, giving you the freedom to adopt strategies that suit your play style.

A truly sandbox open-world RPG, packed with dozens of dynamic systems like dangerous weather types, NPCs with daily routines and memories, a robust crime and reputation system, dynamic faction wars any many more. Become a well-known Hero, a feared Legend or the leader of a Mercenary Band.

Build and explore in a true space sandbox survival adventure. Construct mighty capital vessels, sprawling planetary settlements, and vast space stations in your galactic journey to discover the mysteries of Empyrion!

Defend your dungeon against an onslaught of heroes in this physics-enabled tower defense. Build your dungeon tile by tile, placing deadly traps to protect your loot. Upgrade your defenses and powers as you amass wealth and unleash havoc on these cheese wheel-stealing 'heroes'.

Ragdoll Training Center is a physics based arcade game where you push a ragdoll character through the challenging maps to reach the finish. Compete for thousandths of a second differences with other players in global ranking. Create your own maps in Map Editor and try maps made by other players.

Architect autonomous battleships. Send them on a campaign against deadly opponents. Watch and cheer as they dominate, or cry as they explode. Obliterate dreadnoughts. Configure intelligences. Master weaponry. Free the Great Skies. THE OPPRESSOR MUST FALL.

Face off with the world's deadliest disasters in When Bricks Fly! Dive down with scuba gear, hide in bathtubs or stop tsunamis with nukes! How will you survive?

Join forces with friends in Errships, a cooperative adventure where you construct epic flying contraptions and conquer escalating challenges. Unite with teamwork and defy the enigmatic tower to keep your scrap-filled vessel soaring high in the open skies.

Dash between your foes an unleash spells of your own creation. Build your own magic peice by peice, gather the elements and mark them with runes to do your will. Your weapons are creativity and intellect in this first-person spell-slinger where YOU are the spell designer.

Dive into a VR winter wonderland! Build your own icy fortresses, engage in epic snowball battles, and defend your village from an army menacing snowmen. Stay Frosty!

Design & pilot combat drones among the remains of a broken moon battered in an asteroid field. Rikki Kuu is a third-person, physics-based 6DOF-style vehicular combat game set in a destructible, procedurally-generated environment.

Monogon: Echoes is an Experimental Physics, Sandbox, Adventure game. Use found next-gen mod creating, tools. There aren't any limits or goals. We give you the tools and you create whatever you desire.

Humanity has achieved the final frontier, but human nature haven't changed. NULLSPACE is a real-time strategy game where players lead massive fleets in deep space battles between various intergalactic human colonies.

Carefully balance mobility, firepower and armour in a dedicated tank designer. Then uncarefully put them to the test in a series of combat scenarios progressing through the ages of the tank. Here, your limit is what you can fit inside your hull and turret while still being able to move forwards.