Best games like Space M Defense: Space Shooter

73+ similar games compared and reviewed

4.7 avg rating
10 free games
Updated August 2026

Looking for something like Space M Defense? We've analyzed 73+ similar apps and games to help you find the best alternative. Each app is compared by ratings, features, and real user reviews, so you can make the right choice.

Top Alternatives to Space M Defense

Summoners Greed: Idle Tower TD#1

Summoners Greed: Idle Tower TD by PIXIO LIMITED

Auto Battle Mythic Monster RPG
Editor's Choice
๐ŸŽฎ Games
4.9๐Ÿ˜Š(128K ratings)
FreeAdsIn-App Purchases
Summoners Greed: Idle Tower TD screenshot 1
Summoners Greed: Idle Tower TD screenshot 2
Summoners Greed: Idle Tower TD screenshot 3
Summoners Greed: Idle Tower TD screenshot 4
Summoners Greed: Idle Tower TD screenshot 5
Summoners Greed: Idle Tower TD screenshot 6

Defend your stolen treasure from an invading army of heroes in this idle tower defense game. Summon a variety of monsters and cast powerful spells to obliterate your enemies. Strategically place towers and upgrade your defenses to survive endless waves.

What We Love

  • ๐Ÿš€ Addictive and fun gameplay
  • ๐Ÿ‘ Charming and unique visuals
  • ๐Ÿ”“ No forced ads or in-app purchases
  • ๐Ÿ’ฐ Generous rewards for idle playtime

Room to Improve

  • ๐Ÿข Slow progression and wave clearing
  • ๐Ÿ” Repetitive gameplay and lack of variety
  • ๐Ÿค• Difficulty spikes can feel unfair
The Tower - Idle Tower Defense#2

The Tower - Idle Tower Defense by Tech Tree Games LLC

Base defense, kill the enemy
Strong Contender
๐ŸŽฎ Games
4.2๐Ÿ˜(19K ratings)
FreeAdsIn-App Purchases
#63in Games
The Tower - Idle Tower Defense screenshot 1
The Tower - Idle Tower Defense screenshot 2
The Tower - Idle Tower Defense screenshot 3
The Tower - Idle Tower Defense screenshot 4
The Tower - Idle Tower Defense screenshot 5
The Tower - Idle Tower Defense screenshot 6

Build and upgrade a single tower to defend against waves of enemies in this incremental tower defense game. Make permanent upgrades, unlock new areas, and compete in tournaments. Enjoy addictive gameplay with a vast array of strategic choices.

What We Love

  • ๐Ÿš€ Slow but steady progression
  • ๐Ÿ‘ No forced ads
  • ๐Ÿ‘ Simple but engaging gameplay
  • ๐ŸŽถ Calming music

Room to Improve

  • ๐Ÿ•ฐ๏ธ Extremely slow progression
  • ๐Ÿ’ฐ Expensive upgrades and in-app purchases
  • ๐Ÿ› Bugs and crashes
Idle Monster TD: Tower Defense#3

Idle Monster TD: Tower Defense by Monstermob Usa, INC.

Evolve Epic Monsters and Fight
Worth Considering
๐ŸŽฎ Games
4.7๐Ÿ˜ž(818 ratings)
FreeAdsIn-App Purchases
Idle Monster TD: Tower Defense screenshot 1
Idle Monster TD: Tower Defense screenshot 2
Idle Monster TD: Tower Defense screenshot 3
Idle Monster TD: Tower Defense screenshot 4
Idle Monster TD: Tower Defense screenshot 5
Idle Monster TD: Tower Defense screenshot 6

Build a team of evolving monsters to defend your portal from endless waves of human invaders. Strategize monster placement and utilize powerful abilities in this idle tower defense RPG. Collect resources, unlock new creatures, and compete in PvP tournaments.

What We Love

  • ๐Ÿš€ Good game mechanics
  • ๐Ÿ‘ Easy to understand
  • ๐Ÿ‘ Enjoyable gameplay
  • ๐Ÿ‘ Decent graphics

Room to Improve

  • ๐Ÿ› Tournaments no longer running
  • ๐Ÿ› Connectivity issues
  • ๐Ÿ› Losing progress/save data

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4
Idle Hero TD Tower Defense RPG
Idle Hero TD Tower Defense RPG
Idle Hero TD Tower Defense RPG
AFK Strategy, Offline Progress
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Assemble a team of heroes to build an unstoppable defense against monster waves. This game blends idle strategy, tower defense, and fantasy RPG elements, allowing your heroes to fight and grow even while offline. Experiment with hero synergies and upgrades for deep strategic progression.

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Boom Castle: Tower Defense TD
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Boom Castle: Tower Defense TD
Idle Tower Defense TD Survival
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Defend your castle against endless waves of enemies in this roguelike idle tower defense game. Assemble heroes, strategically place towers and traps, and upgrade your defenses to survive brutal hordes. Master tactical gameplay and unleash devastating abilities to protect your stronghold.

Roguelike idle tower defenseAssemble and upgrade diverse heroesStrategic tower and trap placement
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6
Wild Sky TD:Tower Defense Coop
Wild Sky TD:Tower Defense Coop
Wild Sky TD:Tower Defense Coop
Defend Your Fantasy Kingdom
Free

Engage in real-time strategy tower defense with over 250 collectible cards for towers, heroes, and spells. Explore diverse fantasy and steampunk settings across 1,500+ levels. Enjoy PvE, co-op raids, tournaments, and PvP modes.

250+ collectible tower, hero, and spell cards1,500+ handcrafted levelsStunning 3D graphics
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7
Rumble Rivals: Tower Defense
Rumble Rivals: Tower Defense
Rumble Rivals: Tower Defense
Merge TD Battle Tower Madness
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Engage in real-time PvP tower defense battles against players worldwide. Outsmart opponents with strategic hero and spell combinations to be the last one standing. Collect and upgrade heroes to unlock new units and progress through challenging arenas.

Real-time PvP TD battlesBattle royale last player standingStrategy and deck building
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Royal Revolt 2: Tower Defense
Royal Revolt 2: Tower Defense
Royal Revolt 2: Tower Defense
MMO RPG & Castle Defense Game
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Build a formidable kingdom, design deadly defenses, and lead your army into strategic battles. Raid other players' bases, upgrade your king's gear, and forge alliances to dominate in this action-packed MMO strategy game.

Build and customize your kingdomDesign defensive pathsRaid other players' bases
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9
Idle Archer Tower Defense RPG
Idle Archer Tower Defense RPG
Idle Archer Tower Defense RPG
Incremental Loot & Skill Cards
Free

Defend your tower against waves of monsters in this incremental idle RPG. Upgrade your archer and tower with loot and powerful skill cards. Learn from defeats to become stronger and protect the kingdom.

Incremental idle gameplayTower defense strategyRPG character upgrades
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10
Space War: Idle Tower Defense
Space War: Idle Tower Defense
Space War: Idle Tower Defense
Epic Adventure Idle RPG Arena
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Defend against waves of angry aliens in this adventure space game. Choose your ship, combine skill cards and bots, and strategically upgrade weapons to survive increasingly dangerous levels. Enjoy fast-paced, automatic gameplay perfect for on-the-go play.

Combine skill cards and botsChoose from 6+ unique shipsFace 100+ monsters simultaneously
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