Games like Medieval: Defense & Conquest
Medieval: Defense & Conquest. These games share the most with it, and each one says why.

Dead Spreading:Idle GameDormant
Also idle, tower defense, resource management
Recruit soldiers and upgrade a base to hold off zombie waves while balancing defense and supply gathering.

Idle Kingdom DefenseDormant
Also idle, tower defense, combat
Command heroes and archer corps in large castle-defense battles, with rewards stacking up while the game is closed.
75% idle
Last Stronghold: Idle SurvivalUpdated
Also idle, combat, resource management
Build a base after a nuclear zombie outbreak, crafting supplies, recruiting survivors and clearing out the undead.

Tower Defense: Lazy ApocalypseUpdated
Also tower defense, idle, combat
Play a monster-slaying streamer holding off zombie waves, upgrading weapons while your hero keeps fighting when you are away.
75% idle
Zombie Idle DefenseUpdated
Also idle, tower defense, combat
Equip survivors with weapons and hold a defensive line against waves of zombies and bosses across post-apocalyptic levels.

Zero Stress King: Idle DefenseUpdated
Also tower defense, idle
A tower defense where you cannot lose: enemies charge your walls and fall into lava, and you spend the payout on defenders and a map-shaped skill tree.
87% steam3.6★ galaxy
Abyss Manager Idle
Also tower defense, idle
Assign characters to jobs, gather resources and dig deeper floors in an idle tower defense. About two hours to finish completely.
95% steamhas ending
Marisa!ReturnTheBook!
Also idle, combat
A Touhou fan game where you craft Shanghai dolls styled after Gensokyo characters to storm Marisa's house and recover her borrowed books.
90% steam
Slimeward
Also combat, idle
Turn a slime that landed outside your house into resources, building up a village and recruiting heroes strong enough to beat it.
89% steam
All Aboard! The Train Defense Express
Also tower defense, combat
Defend a power generator from waves of orcs with a looping train, buying combat and gold-making carriages and merging three alike to level them.
91% steam
Pacifish
Also idle, combat
Fish six areas, fight back against what you disturb, hatch and eat fish for stats, and craft poles, playable idly or actively for speed.
84% steam50% idle
Crownhold
Also resource management, combat
Grow a castle into a realm, find trading partners and besiege rivals, then restart stronger through meta progression. Deliberately compact.
84% steam
Alien Invasion: RPG Idle SpaceUpdated
Also combat, idle
Guide an alien that eats humans to grow stronger, evolve its abilities and beat bosses in new locations.

Archer Forest : Idle DefenseUpdated
Also idle, combat
Defend a forest with animal archers by merging arrows into stronger ones, clearing stages, and beating bosses for loot.

Battle Simulator: Idle WarfareUpdated
Also idle, combat
Recruit fighters from many eras, from Spartans to helicopters, and watch them clash in automatic battles.

Clicker Heroes - Idle SlayerUpdated
Also idle, combat
Tap to fight waves of monsters and recruit a team of heroes with their own abilities, in the mobile version of a long-running idle RPG.

Combo Clash - Era WarsUpdated
Also tower defense, combat
Merge weapon blocks on a grid to power a hero against waves of enemies, advancing through eras from cavemen to future soldiers.

Demigod Idle: Rise of a legendDormant
Also idle, combat
Play a demigod stripped of angelic and demonic power, regaining it through fast idle growth and flashy 2.5D battles.

Dice vs Monsters: Roguelike TDUpdated
Also tower defense, idle
A roguelike tower defense where each hero is a die, with dice rolls used to upgrade abilities against monster waves.

Dungeon Crusher: AFK HeroesUpdated
Also idle, combat
Collect heroes who clear dungeons without you, then log in to claim loot and assemble squads for PvP and PvE rankings.
75% idle
Endless Frontier - RPGUpdated
Also idle, combat
Lead a squad of knights and mages up thousands of stages against titans and dragons, with units that keep climbing and leveling on their own while you are away.
75% idle
Epic Stickman: RPG Idle WarUpdated
Also idle, combat
Guide a stickman hero through a shadowy realm, picking a class and gaining power in automatic fights even offline.
75% idle
Eternal Cannon Idle ShootingDormant
Also idle, tower defense
Defend a city with an upgradable cannon and walls, mixing tapping and upgrades where each level brings a new skill.
50% idle
F Class Adventurer: AFK RPGUpdated
Also idle, combat
Level a lowly F-rank adventurer toward S-rank with screen-clearing area skills while experience keeps piling up offline.
75% idle