Games like DECON Protocol

Want something that feels retro the way DECON Protocol does? You will find a few strong contenders among these games.

1. Unnamed Space Idle

   

   Unnamed Space Idle is a long sci-fi idle game about holding back alien waves after humanity is nearly wiped out. You fit your ship with weapons and defenses for specific enemies, then stack up 10+ growing systems that feed your power. Its strength is steady, thoughtful tinkering with real choices. Good for patient optimizers.

   92%92% of 4,591 Steam reviews are positive4.5KPlayers online now: 4,479Free

2. IDLE: Intergalactic Defense League Exterminators

   

   An incremental game about blasting bugs, collecting guts, upgrading a base, and blasting more bugs!

   Retro

   63%63% of 38 Steam reviews are positive$5.99

3. Galaxy Idle Clicker

   

   An idle space game with real depth: clear 5,280 areas across seven universes, fight enemy ships, rescue prisoners and stack four prestige systems on top of each other. It runs in the background and rewards daily check-ins with astronomical numbers.

   74%74% of 1,227 Steam reviews are positive568Players online now: 568Free

4. To The Core

   

   Drill through planets across a solar system, spend the loot on upgrades, and go back down deeper than before. To The Core is a relaxed incremental game where a fragile little drill slowly becomes a machine that eats worlds.

   Retro

   92%92% of 5,112 Steam reviews are positive36Players online now: 36$7.99

5. Starvester

   

   Starvester is a short incremental game about turning a whole star system into one big factory. Send out drones, mine planets, unlock upgrades and build giant megastructures, all at an unhurried pace. It runs about five hours, so it fits a relaxed afternoon of quiet numbers going up.

   68%68% of 821 Steam reviews are positive15Players online now: 15$6.99

6. IDLE_DIRECTIVE

   

   A post-apocalyptic idle game about Tetris-ing equipment into a tiny grid until your little machine gathers, builds, and repairs on its own. Scavenge ruins, fix reactors, trade with survivors, then reset the world for permanent upgrades.

   Retro

   86%86% of 538 Steam reviews are positive47Players online now: 47$4.99

7. Lazy Galaxy 2

   

   Lazy Galaxy 2 is an idle/clicker game with base-building and RTS elements. Lead an evil (albeit lazy) alien race to conquer the universe! Expand your base, fight vicious foes, and conquer the galaxies. Acquire combat experience and convert into candy, the most precious alien resource!

   Retro

   77%77% of 168 Steam reviews are positive1Players online now: 1$7.99

8. Idle Space Raider

   

   An idler about a station guard patrolling space: shoot enemies and asteroids, mine ore, research tech, then spend the spoils on your ship and station. Automation slowly takes over the busywork, so the game mostly runs in the background while you drop in, tweak a build and watch the numbers climb.

   73%73% of 250 Steam reviews are positive15Players online now: 15Free

9. Upload Labs

   

   Build a tiny computer into a universe-saving machine in Upload Labs, a sci-fi management sim about wiring nodes together to download, process, and upload files faster. Research tech, hack organizations, write code, and raise an AI toward general intelligence, all while tuning flows and bottlenecks. Methodical, satisfying, and easy to lose an evening to.

   91%91% of 8,966 Steam reviews are positive826Players online now: 826Free

10. Underworld Idle

    

    An idle game about running an underworld. Higher demons create lower demons, undead make more undead, and the numbers keep climbing. Four factions, prestige resets through Infernal Contracts, and a grimoire of dark spells, all in charming 2D pixel art. A deep incremental game that rewards patience and a little meddling.

    70%70% of 1,383 Steam reviews are positive162Players online now: 162Free

11. Desk Space: Idle Spacefleet clicker

    

    Grow your fleet of spaceships in this incremental space game. Mine asteroids and trade with stations, unlock upgrades to make more money, deploy pirates, and unlock [REDACTED]. Pin to your desktop and watch your empire grow while you do "more important" things.

    68%68% of 131 Steam reviews are positive2Players online now: 2$5.99

12. DEFRAG

    

    DEFRAG turns system maintenance into a bullet hell: you steer a little cube through corrupted sectors, blast viruses, and spend what you salvage on nodes and weapon modules. Tweak the build, combine nodes into new combat styles, and push into harder challenges. Short, snappy, and oddly satisfying to optimize.

    Retro

    93%93% of 571 Steam reviews are positive7Players online now: 7$2.99

Hidden gems like DECON Protocol

DEFRAG

DEFRAG turns system maintenance into a bullet hell: you steer a little cube through corrupted sectors, blast viruses, and spend what you salvage on…

93%93% of 571 Steam reviews are positive7Players online now: 7$2.99

IDLE_DIRECTIVE

A post-apocalyptic idle game about Tetris-ing equipment into a tiny grid until your little machine gathers, builds, and repairs on its own.

86%86% of 538 Steam reviews are positive47Players online now: 47$4.99

Idle Deepcore

Run a growing mining operation from a single drill to a spacefaring industry, one upgrade at a time.

86%86% of 449 Steam reviews are positive58Players online now: 58$4.89

Pibcremental

Put cute little Pibbles to work, grow a huge tree and watch your numbers climb to silly heights at your own pace.

84%84% of 403 Steam reviews are positive56Players online now: 56$4.49

Around The Core

A space-themed incremental shooter where destruction fuels growth. Annihilate asteroids, harvest wealth, and climb a massive upgrade tree.

84%84% of 120 Steam reviews are positive2Players online now: 2$3.99

Antivirus PROTOCOL

Antivirus PROTOCOL is an incremental game about destroying viruses.

87%87% of 324 Steam reviews are positive$4.99

Feed the Reactor

Feed fuel into a reactor, mix elements until the numbers sing, and warp across a strange galaxy with a secret.

82%82% of 672 Steam reviews are positive5Players online now: 5$6.99

A Game About Feeding A Black Hole

Crush asteroids, planets and stars into a hungry black hole, and let the numbers climb while calm music plays.

87%87% of 3,605 Steam reviews are positive26Players online now: 26$6.99

Rock Crusher

Rock Crusher is an incremental game with a massive skill tree. Control a little rock-crushing machine stranded on a mysterious planet.

84%84% of 357 Steam reviews are positive$6.99

Particul

Tap out particles, automate the work and trade your way toward the rarest one.

79%79% of 793 Steam reviews are positive17Players online now: 17$1.99

The Perfect Tower II

Hold the waves, grow an island economy around your tower, and let simple commands handle the busywork while you chase upgrades and bosses.

86%86% of 4,533 Steam reviews are positive826Players online now: 826Free

Upload Labs

Route files through a growing network of nodes, then tune every bottleneck until the whole machine hums.

91%91% of 8,966 Steam reviews are positive826Players online now: 826Free

Newest games like DECON Protocol

Birb

Grow a popcorn-loving bird into something far stranger through idle progress, dungeon runs, fishing and nest upgrades.

83%83% of 428 Steam reviews are positive2KPlayers online now: 1,975$4.99

Pibcremental

Put cute little Pibbles to work, grow a huge tree and watch your numbers climb to silly heights at your own pace.

84%84% of 403 Steam reviews are positive56Players online now: 56$4.49

Orebits

Bounce a pickaxe through asteroids and watch whole rock layers burst apart.

70%70% of 61 Steam reviews are positive3Players online now: 3$5.59

We Need More Humans!

A short incremental game about abducting humans with a UFO! Travel around the world, unlocking upgrades, abducting humans until there is no one left.

70%70% of 165 Steam reviews are positive$6.99

Around The Core

A space-themed incremental shooter where destruction fuels growth. Annihilate asteroids, harvest wealth, and climb a massive upgrade tree.

84%84% of 120 Steam reviews are positive2Players online now: 2$3.99

DEBRISVERSE

That debt is a trap. This is no ordinary incremental game. Use unauthorized tools, the black market, and hacking to uncover B.R.I.S.

94%94% of 36 Steam reviews are positive8Players online now: 8$3.99

IDLE_DIRECTIVE

A post-apocalyptic idle game about Tetris-ing equipment into a tiny grid until your little machine gathers, builds, and repairs on its own.

86%86% of 538 Steam reviews are positive47Players online now: 47$4.99

Desk Space: Idle Spacefleet clicker

Grow your fleet of spaceships in this incremental space game.

68%68% of 131 Steam reviews are positive2Players online now: 2$5.99

Starvester

Send drones out to mine planets, unlock upgrades and raise megastructures while the numbers quietly climb.

68%68% of 821 Steam reviews are positive15Players online now: 15$6.99

Sporbs

Pop alien organisms like space bubble wrap in this satisfying incremental.

78%78% of 100 Steam reviews are positive$4.99

Dwarf Eats Mountain

Hire dwarves, blow up peaks and haul the gold home in a cozy incremental about very greedy little miners.

80%80% of 1,231 Steam reviews are positive$9.99

Fracture Field

Mine a pixel-art quarry by hand, automate every step, and watch the numbers climb while you are away.

75%75% of 1,336 Steam reviews are positive156Players online now: 156$6.99