Games like DeadOS

VEIN is a post-apocalyptic survival multiplayer sandbox where you navigate a world overrun by hostile zombies and hostile bandits. Gather resources, explore abandoned areas, defend your base, and rebuild society alongside friends in a dynamic environment with realistic AI that senses your presence. Changing seasons and random events continually challenge your survival.

Cepheus Protocol is a real-time strategy game set in a futuristic world overrun by a deadly virus. As the leader of a ragtag group of survivors, players must gather resources, build bases, and research new technologies to combat the outbreak and save humanity. With intense tactical combat and a branching storyline, each playthrough offers a unique challenge.

"The Universim" is a god-game simulation where players oversee a developing civilization across time. Manage resources, research technology, and handle natural disasters to guide your civilization to prosperity. Experience a living, breathing world with dynamic AI and simulated ecosystems. However, keep in mind that ultimate power may lead to the downfall of your civilizations if misused.

inZOI is a life simulation game where players shape vibrant cities and guide autonomous characters called Zois, who live with free will and create dynamic stories. With realistic graphics and immersive environments, players influence weather, properties, and events to witness evolving relationships, trends, and challenges. Experience the beauty and complexity of life through this richly detailed community simulation.

"Survivalist: Invisible Strain" is an open-world game about building a community after civilization's collapse. Recruit survivors by earning their loyalty or fear, and manage their needs for food, warmth, and safety from dangers. Interact with living characters who have unique personalities, remember your actions, and give quests. This is the sequel to "Survivalist," but no prior knowledge of the first game is needed.

"Project Gunship is a single-player simulation game currently in early access, offering an authentic AC-130 Gunship combat experience. The game aims to provide a detailed and immersive simulation, with features such as multiple gun configurations, day and night missions, and different target types. As an alpha release, improvements and updates are regularly added based on player feedback."

In "Infection Free Zone," players must survive in a post-apocalyptic world overrun by a deadly virus. Choose any location in the real world and build shelters, production facilities, and defenses to establish an infection-free zone. Manage resources like electricity, water, and food to ensure the survival of you and your group. Fight off aggressive and strong infected enemies to stay alive.

"Ruinarch is a single-player role-playing sandbox simulation game, where you play as an overlord, causing chaos and conflict in procedurally generated fantasy worlds. Choose from three archetypes, each with unique playstyles, and experiment with destructive spells to create mayhem. Despite good game mechanics, be prepared for bugs and some grinding, but also expect plenty of humor in this anguish-filled tale."

DeadPoly is an action-packed polygon zombie survival game with base building, crafting, and gun customization. Play solo, with friends in co-op or multiplayer mode, or engage in PvP battles. Create a character, build a base, gather resources, and scavenge for weapons and attachments to survive in this sensational game with plenty of humor, but beware of bugs.

"Rise to Ruins" is a godlike village simulator that combines elements of real-time strategy, tower defense, and survival games. The objective is to build and manage a village, facing brutal survival conditions and learning from each failure to improve in subsequent attempts. The game offers three modes: Survival, Sandbox, and Peaceful, with Survival being the intended experience.