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Games like Sanctum | IndieDex

Sanctum
Games like Sanctum

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Games like Sanctum

A co-op FPS/tower defense hybrid with swarming aliens and weapon upgrades, where reviewers logged roughly 11–13 hours but note the mix feels dated.

Frontline Crisis
A strategy-heavy mech-defense game where you protect humanity's last sanctuary from insect swarms, with co-op/split-screen play and a reviewer-reported roughly nine-hour campaign.
2024-08-14
- Shooter
- Action

Science fiction

Strategy

Bird view / Isometric

Real Time Strategy (RTS)

Alien Shooter TD cover art

Alien Shooter TD

A gory, single-player tower defense game mixing tower placement with hands-on alien combat, with early-reviewer playtimes ranging roughly 9–16 hours.

2017-01-13

Action
Science fiction
Strategy
Bird view / Isometric
Indie

Axon TD: Uprising - Tower Defense cover art

Axon TD: Uprising - Tower Defense

A strategic tower defense game where you expand the map to funnel enemies and place specialized towers, offering single-player, co-op, and roguelite modes; sampled reviewers logged roughly 26–30 hours.

2024-09-27

Science fiction
Strategy
Bird view / Isometric
Indie

No Creeps Were Harmed TD cover art

No Creeps Were Harmed TD

A humorous tower defense (single-player and online co-op) focused on maze-crafting and adapting to evolving creeps, with deep hand-crafted levels and a 20+ hour reviewer playtime.

2024-07-27

Comedy
Science fiction
Strategy
Simulator

Sanctum 2 cover art

Sanctum 2

A tower defense/FPS hybrid where you and up to four players defend alien-threatened Cores, with fun co-op action but uneven difficulty and reviewer playtimes around 12–16 hours.

2013-05-15

Shooter
Action
Warfare
First person
Science fiction
Survival
Strategy
Indie
Real Time Strategy (RTS)

Super Sanctum TD cover art

Super Sanctum TD

Build mazes and towers to fend off alien hordes in this retro-styled, strategy-focused tower defense game, with balanced, simplified gameplay and a ~17-hour campaign per one reviewer.

2013-05-09

Action
Science fiction
Strategy
Third person
Indie
Real Time Strategy (RTS)

X-Morph: Defense cover art

X-Morph: Defense

A fast-paced top-down shooter/tower-defense hybrid where you play the alien invader, balancing tower placement and direct combat in a roughly nine-hour campaign with co-op.

2017-08-30

Shooter
Action
Science fiction
Strategy
Bird view / Isometric
Indie
Simulator
Arcade

Iron Grip: Warlord cover art

Iron Grip: Warlord

A steampunk tower-defense/FPS hybrid where you defend Atelia solo or co-op, with mechs and airships.

2008-12-05

Shooter
Action
First person
Strategy
Fantasy
Bird view / Isometric
Indie
Real Time Strategy (RTS)

Outpost: Infinity Siege cover art

Outpost: Infinity Siege

A military sci-fi FPS/tower-defense/base-building hybrid where you command a mobile outpost solo or in co-op, with mixed reviews and stability concerns.

2024-03-26

Shooter
Action
First person
Science fiction
Strategy
Bird view / Isometric

Immortal Defense cover art

Immortal Defense

A story-driven tower defense game about sacrificing yourself to defend your home world, with punishing difficulty and an emotionally resonant narrative; reviewers' median playtime is about 7.5 hours.

2015-08-31

Action
Science fiction
Strategy
Indie
Side view

SENTRY cover art

SENTRY

A solo or co-op spaceship-defense FPS where traps and turrets repel alien boarders; fun but repetitive and light on content.

2024-03-25

Shooter
Action
First person
Science fiction
Strategy
Indie

Desperate Place cover art

Desperate Place

A strategic single-player tower defense game about repairing a stranded starship on an alien planet, with an active shooter twist and a ~4-hour campaign.

2025-04-21

Shooter
Science fiction
Strategy
Bird view / Isometric
Indie