Games like Rigor Mortis

Frozen Synapse 2 is a tactical game set in a procedurally generated open world city, where you must defend against internal and external threats. Manage bases, deploy forces, and engage targets in simultaneous turn-based combat, while dealing with AI-controlled factions vying for control. Collaborate or betray, and participate in various activities such as bank robberies and assassinations.

After The End: The Harvest is a non-linear, open-universe RPG with classic action adventure styling. Explore unique planets, battle over 100 monsters, and discover tons of weapons, armors, and spells. Your choices and actions lead to one of two possible endings in this immersive, story-driven experience.

Melted Valor is a fast-paced, old-school shooter delivering pure single-player action without modern distractions or grind. Players join the Green Forces as they battle the sinister Tan faction, who manipulate local bugs and toys into a deadly army. This intense, toy-themed war tests every victory and loss in a fight for their world’s future.

Urban Strife is a turn-based tactical survival RPG where you manage a struggling militia amid ruthless gangs and a zombie outbreak. Balance shelter rebuilding, resource management, and squad morale while navigating a dynamic world with realistic ballistics, day-night cycles, and environmental hazards. Your leadership decides who survives in this gritty, strategic fight for survival.

Into the Dead: Our Darkest Days is a side-scrolling survival game where you guide a group of zombie apocalypse survivors through a devastated city. Scavenge resources, craft weapons, and manage your group's needs while upgrading shelters to protect against relentless undead threats. Your goal is to get everyone to safety amid the chaos of an unstoppable outbreak.

Dead State is a single-player horror turn-based strategy RPG set in a post-apocalyptic world. As the leader of a survivor group, you must manage resources, negotiate with other factions, and defend against the undead, with an emphasis on survival. The game features base building, tactical combat, and reactive storylines, with a mix of humor and a wholesome story in a full-fledged RPG experience. However, it is known to have many bugs and can be very grinding.

"Delivery From The Pain:Survive" is a survival-strategy game with a rich RPG storyline, set in a 3D post-apocalyptic world. Features multiple endings, lifelike NPCs, varied weapons and sneak system, as well as a study system and workshop for strategic choices. The game also includes over ten types of zombies, four boss monsters, iCloud sync support, and Metal rendering for enhanced visuals.

"War Room" is a real-time strategy game where players manage resources, recruit and command military units, and engage in battle with opponents in a variety of scenic environments. The game offers a single-player campaign, multiplayer mode, and a custom skirmish option against AI or human opponents. Players must balance base-building, troop deployment, and strategic planning to emerge victorious.

"Survivalist" is a horror RPG that offers single-player and multiplayer modes, allowing up to 2 players to explore the open world and build a community after civilization's collapse. The game features an innovative dialog system, action-RPG and real-time strategy elements, and challenging combat against fast zombies. Its grindy gameplay, numerous bugs, and high replayability make it a unique and hilarious experience. The sequel promises more of the same.

"Need to Know is a single-player simulation game with an intriguing story, set in a modern intelligence agency. Players must spy on civilians, make moral choices, and can choose to aid underground groups or use classified information for personal gain. However, the game is reported to have lots of grinding and bugs, affecting the overall gameplay experience."