Games like M.A.S.S. Builder

"Garrison: Archangel" is a single-player tactical RPG set in a dieselpunk universe. Assemble and command your team of mech pilots to protect humanity from an alien invasion. Engage in strategic combat, upgrade your mechs and skills, and make choices that will impact the story's outcome.

"GUNDAM BREAKER 4 and its Deluxe/Ultimate Editions let you build and customize your own Gundam model, then take it into combat with unique dual-wielding weapon system and ability to break off enemy parts. Deluxe Edition includes early unlock of 15 base kits and Season Pass, Ultimate Edition adds 4 Diorama Packs and related bonus items."

RWBY: Grimm Eclipse is an action-packed hack and slash game set in the world of RWBY. Play as your favorite characters and fight off hordes of Grimm in cooperative gameplay. Explore the world of Remnant and uncover the truth behind the strange occurrences threatening its existence.

In "SD GUNDAM BATTLE ALLIANCE" for PS4 and PS5, players join forces in a "Battle Alliance" to correct a world distorted by false memories. They control iconic Mobile Suits from the Gundam series, battling across various stages in action-packed combat. The game features multiplayer modes, allowing for cooperative and competitive play with friends.

"Killsquad is a fast-paced, co-op Hack and Slash game for up to 4 players with five hero classes to choose from. The game features short, action-packed contracts and a variety of weapons, skills, gears, and talismans to customize your character. However, it has lots of grinding and is known for its bugs."

"Daemon X Machina" is a Science Fiction Hack and Slash game that offers both single-player and multiplayer modes, with up to 2 players able to play co-op. Players pilot customizable mechs called Arsenals, acquiring new weapons from defeated enemies and adapting their strategy to face diverse threats. The game is a third-person action-shooter, where players, represented by their avatars called Outers, complete missions to suppress mechanized foes.

"BREAK ARTS II" is a fast-paced futuristic racing game where players build and customize their own unique mech racers. Compete in high-speed races and battles, using a variety of weapons and abilities to take down opponents. With a deep customization system and intense multiplayer modes, "BREAK ARTS II" offers a fresh and exciting take on the racing genre.

GODBREAKERS is a sci-fi hack and slash game featuring high-expression combat with animation cancelling, dashes, and aerial mobility that rewards mastery while welcoming newcomers. Play solo to hone skills or team up in co-op multiplayer to tackle challenging bosses and explore six unique, ever-changing biomes. With ingenious gameplay, exceptional visuals, a compelling plot, and an excellent soundtrack, it offers intense action and strategic ability chaining through powerful Godbreak attacks.

Steel Phantom is a high-speed action first-person shooter featuring powerful combat mechs, where each mission challenges your reflexes and strategic thinking. Pick your battle approach: a heavily armored mech built to take a beating or a lightweight, agile robot that strikes fast and evades danger. Face five thrilling missions — from daytime raids to a tense night op. Use over five weapon types, …

Daemon X Machina: Titanic Scion is an action-packed mech combat game where players pilot customizable Arsenals to battle enemies in high-tech warfare. Featuring expansive DLC content, it offers enhanced weaponry, outfits, and equipment to deepen gameplay. Engage in intense missions and refine your Arsenal to dominate the battlefield.