Games like The Riftbreaker

They Are Billions is a strategy game set in a post-apocalyptic world overrun by zombies. In the Campaign mode, reclaim territories for the New Empire through 48 missions with 90+ technologies to develop. Survive in randomly generated worlds in Survival mode, defending your colony against massive infected swarms. Uncover the story of the apocalypse's origins while upgrading your colony and army.

Mindindustry is an open-world factory-building game with tower defense and RTS elements, offering single-player, co-op, and PvP multiplayer modes. Create intricate supply chains, generate resources, build defenses, and command units to conquer enemy bases and protect your core from waves of attackers. With challenging production management, hilarious gameplay, and fantastic replayability, this game boasts amazing visuals and masterful music, though it can be quite grinding.

"Age of Darkness: Final Stand" is a dark fantasy strategy game where players must lead their armies against an encroaching horde of nightmarish enemies. By constructing and upgrading buildings, recruiting units, and managing resources, players must hold out against the onslaught in a procedurally generated world. The game features a day-night cycle, strategic unit placement, and a unique "Necrostruct" mechanic that allows players to turn enemy structures into their own.

Volcanoids is a base-building shooter with a unique steampunk drillship base and open-world survival elements. Alone or with up to 3 players, explore a constantly changing volcanic island, battle hostile robots, and craft, upgrade, and automate your drillship. Despite its pretty visuals, humor, and exceptional gameplay, it suffers from being poorly optimized and requiring lots of grinding. The game features a good story and provides a full co-op and single-player experience.

Grim Dawn is a dark, atmospheric action RPG set in a crumbling world overrun by supernatural forces. Choose one of the ten distinct classes to build your character and explore the vast, open world to uncover its many secrets. With a focus on deep, engaging gameplay and a rich, compelling story, Grim Dawn offers a challenging and immersive experience for ARPG fans.

"Wizard With a Gun" is a cooperative action-adventure game where players assume the role of Gunmancers, wielding unique wands to explore the mysterious Shatter world, defeat enemies, and uncover lore. The "Better Together" update introduces four-player co-op, adjustable difficulty levels, and new buildings like the Library and Voidskimmer. Completing the main story unlocks the Oculus for a thrilling conclusion. Teamwork and strategic use of abilities are key to overcoming challenges and harnessing the power of chaos.

"DYSMANTLE" is an open-world, single-player or local co-op game with a dense atmosphere, interesting plot, and spectacular gameplay/graphics. You must escape a post-apocalyptic island by fighting creatures, breaking objects for materials, exploring, surviving, building outposts, crafting, hunting/taming animals, farming, and solving puzzles. The game is known for its humor, good music, and being very grinding.

In "V Rising," players assume the role of a vampire, recently risen from the grave, who must regain their strength and build a powerful stronghold. They must hunt for resources, battle enemies, and avoid the sun while diplomating or battling other players in this open-world survival game. Combining savage combat, strategic castle building, and a thirst for blood, players must quench their dark hunger to become the apex predator.

"Cataclismo" is a single-player fantasy strategy game with a sensational plot and atmospheric gameplay, featuring delightful visuals and music. As the leader of humanity's last survivors, players must build and defend fortresses against waves of Horrors, managing resources and coordinating units in their defense. Despite some grinding and bugs, the game offers high replayability across various biomes for an engaging and challenging experience.

Everspace 2 is a single-player space exploration and combat game with RPG elements. Traverse a vast open universe, gather resources, upgrade your ship, and engage in high-stakes dogfights against hostile alien forces. Experience a compelling story with diverse characters, factions, and quests. The game features stunning visuals, detailed space environments, and immersive sound effects.