Games like Castle Defense

"Necrosmith" is a single-player fantasy hack and slash game with excellent mechanics, splendid visuals, and a fabulous soundtrack. As a Necromancer, you assemble and upgrade an army of undead creatures, combining body parts to optimize their combat abilities. Explore diverse biomes, build up your necro labs, and escape from this strange world. The game offers a good plot and humor, with some grinding required. Don't forget to check out Necrosmith 2 and Wall World.

In "Warlords Under Siege," players command their own medieval stronghold, defending against enemy invasions while launching attacks to expand their territory. Resources must be managed carefully to build and upgrade structures, train troops, and research new technologies. With a variety of units and strategies at their disposal, players must adapt to changing battle conditions to secure victory.

"Silica" is a shooter/RTS hybrid offering 2-player co-op, PvP, and single-player action. Choose between human infantry or alien hive-mind, each with unique vehicles and creatures. Join the community through the official Discord server for updates, developer interaction, and player collaboration. Despite some bugs, the technical aspects, humor, and dense atmosphere make it a worthwhile experience.

"Gates of Hell: Ostfront," a Call to Arms game, explores the Eastern Front of WWII from 1941-1945. Offering single and multiplayer modes, players can command troops in first-person, third-person, or classic RTS views. The dynamic campaign allows for strategic advancement, unit research, and co-op play with friends. Conquer the Great Patriotic War in this realistic RTS.

"Grim Nights" is a top-down, open-world survival game set in a post-apocalyptic world. Players must scavenge for resources, craft tools, and build shelters to survive against the harsh elements and dangerous enemies. The game also features a day-night cycle and dynamic weather system, adding to the survival challenges. However, please note that the game is currently in Early Access and may still have some bugs and unfinished features.

"Pike and Shot: Campaigns" is a turn-based strategy game set in the age of Renaissance warfare. Command your armies and utilize the unique abilities of battlefield generals to gain an edge in combat. The game features tactical enhancements and a new unit mix, offering a fresh take on the popular "Pike and Shot" series. Available now on Steam.

In Undead Horde , become a necromancer and raise an army of up to 100 undead creatures, including humans and giant scorpions, to battle the living. Gather an array of weapons, trinkets, and magical items, and command your horde to conquer a fantasy world. With various merchants to sell and trade loot and the ability to unlock new minion types, level up and create the necromancer of your nightmares.

"Executive Assault" is a real-time strategy and first-person shooter game hybrid. Players can build and manage their own bases, while also controlling individual units in FPS combat. The game features intense PvP and AI combat, with a focus on strategic base building and tactical unit control. Overseeing every aspect of your company is crucial for success, from researching new technologies to commanding your soldiers in battle.

"Möbius Front '83' is a turn-based strategy game set in 1983, where the US defends against an alternate universe America. Engage in tactical battles using authentic military hardware and uncover the motivations behind the attack through a single-player campaign with voiced cutscenes. The game also offers multiplayer skirmishes, AI battles, and unique side activities."

"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.