Games likeOrbital Defense Force

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Obscure

SUPER UFO FIGHTER

24% matchPixel Graphics, Action

89%19 reviews
Indie

Chicken Invaders 4

33% matchOften compared to it, Shoot 'Em Up, Action

98%556 reviews
Obscure

Last Stand: Defense

24% matchSimilar premise

81%116 reviews
Obscure

Shattered Void

25% matchSpace, Top-Down

72%97 reviews
AA

Mainframe Defenders

24% matchPixel Graphics, retro

87%728 reviews
Obscure

Dangerous Planet

26% matchSpace, Shooter

75%12 reviews
AA

John Carpenter's Toxic Commando

28% matchOnline Co-Op, PvE

72%6.4K reviews
Obscure

CyberTD

24% matchOnline Co-Op

66%50 reviews
Obscure

CrossPlanet Beta

26% matchOnline Co-Op, Shooter

65%52 reviews
Obscure

Planetoid Evasion

27% matchShoot 'Em Up, Action

60%10 reviews
Indie

Touhou Luna Nights

23% matchBullet Hell, Difficult, 2d

97%13.8K reviews
AA

Fistful of Frags

24% matchOnline Co-Op, PvE

91%36.9K reviews
Indie

Void Crew

28% matchOnline Co-Op, Space

86%6.6K reviewsDeck
Obscure

The Infinite Black 2

26% matchSpace, Action, space

87%202 reviews
Indie

Axon TD: Uprising - Tower Defense

25% matchOnline Co-Op, PvE

86%708 reviews
Obscure

Space Mercenary Shooter : Episode 2

28% matchAction, Space, Similar premise

85%21 reviews
Obscure

POLARIS™

31% matchOnline Co-Op, Space, Similar premise

59%32 reviews
Obscure

Super Destronaut DX

35% matchShoot 'Em Up, Action

89%76 reviews
AA

Sketchy's Contract

31% matchOnline Co-Op, Space

83%1K reviews
Obscure

Forward Defense

24% matchTop-Down, PvE

68%16 reviews
AAA

SUPERVIVE

23% matchTop-Down Shooter, Online Co-Op

85%23.8K reviews
Obscure

Astroflux

28% matchBullet Hell, Space

72%349 reviews
AA

Drive Beyond Horizons

23% matchOnline Co-Op, Shooter

77%18.4K reviews
Obscure

Outpost 3

27% matchBullet Hell, Space

37%29 reviews
Obscure

Rogue Kingdoms

25% matchAction Roguelike, Top-Down

60%20 reviews
Obscure

D.O.T. Defence

25% matchPixel Graphics, PvE, Similar premise

85%208 reviewsDeck
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Operation : Strike & Secure

26% matchPvE, Action

66%18 reviews
Obscure

Galactic Force

27% matchAction, Shooter, Similar premise

69%81 reviews
Obscure

B.A.D Battle Armor Division

27% matchShoot 'Em Up, Action

47%55 reviews
Obscure

X-17

21% matchAction, Shooter

52%110 reviews
Obscure

Space Ops VR: Reloaded

24% matchAction, Shooter, Similar premise

37%43 reviews
Obscure

Suit Up

27% matchAction Roguelike, Shooter

90%11 reviews
Obscure

Earth's Greatest Defender

23% matchPixel Graphics, Action

95%41 reviews
AA

Outpost: Infinity Siege

22% matchShooter, Action

65%11.7K reviews
Obscure

Tower Defense: Infinite War

24% matchOld School, Retro, space

45%37 reviews
Obscure

Masteroid

22% matchSpace

70%27 reviews
Obscure

Band of Defenders

23% matchPvE, Shooter

48%313 reviews
Obscure

No Heroes Here 2

27% matchOnline Co-Op, Action

61%13 reviews
Obscure

SilverFrame(纯白星原)

25% matchSpace, Shooter

88%70 reviews
Indie

Chex Quest HD

25% matchAction, Retro

79%2.1K reviews
AA

Aliens: Fireteam Elite

29% matchOnline Co-Op, Space

80%21.8K reviews9 hDeck
AAA

DOOM

25% matchDifficult, Action, difficult

95%156.1K reviews8 hDeck
Indie

Absolver

22% matchOnline Co-Op, Difficult

74%11.5K reviews
Indie

Furi

26% matchBullet Hell, Shoot 'Em Up, difficult

90%11.3K reviews4.3 hDeck
Obscure

Star Conqueror 舰队指挥官

24% matchSpace, Top-Down

60%10 reviews
AA

Outward Definitive Edition

22% matchOnline Co-Op, Difficult

72%24.9K reviewsDeck
AAA

Warframe

25% matchOnline Co-Op, Space

87%682.4K reviews32 hDeck
Indie

BOKURA

23% matchOnline Co-Op, Pixel Graphics, pixel graphics

91%10.9K reviews5 h