MINE. UPGRADE. SURVIVE. REPEAT

Your space station floats alone in the void. Meteor storms rage every 60 seconds. Your turrets are empty. Your only hope? Mine asteroids before the next wave hits.

CosMiner is a fast-paced space mining tower defense game where every second counts and every asteroid matters.


🎮 THE ULTIMATE MINING TOWER DEFENSE EXPERIENCE

In CosMiner, you're not just defending—you're gathering your own ammunition.

Every asteroid you mine becomes bullets for your turrets. Every second wasted mining is a second less to prepare your defenses. The pressure is real. The stakes are high.

This isn't your typical tower defense. This is resource management under fire.


⚡ CORE GAMEPLAY

⛏️ MINING PHASE (60 seconds)

Race against the clock to mine asteroids scattered across space. Each rock you collect fills your ammunition reserves. Fast reflexes and smart pathing are key—waste time, waste ammo, waste your base.

🛡️ DEFENSE PHASE (Wave Survival)

Watch as meteor storms descend on your station. Your turrets automatically fire—if you mined enough ammo. Run dry? Game over. Strategic tower placement and resource management separate survivors from space debris.

🔄 PROGRESSION LOOP

Survive the wave → Upgrade your mining ship and turrets → Face harder meteor storms → Repeat. Each cycle pushes you further. How long can you last?


🌟 KEY FEATURES

  • Unique Mining Mechanic – Your bullets are your responsibility
  • 60-Second Time Pressure – Every wave counts down relentlessly
  • Strategic Tower Defense – Position matters, ammo matters
  • Progressive Difficulty – Waves get deadlier as you survive
  • Fast-Paced Arcade Action – No downtime, pure intensity
  • Resource Management Under Fire – Balance mining vs. preparation time
  • Upgrade System – Improve your ship, turrets, and defenses
  • Browser-Based – Play instantly, no download required

🎯 PERFECT FOR FANS OF

  • Tower Defense games like Mindustry, Bloons TD, Kingdom Rush
  • Mining games with action elements
  • Survival games with wave-based combat
  • Strategy games demanding resource management
  • Arcade games with high-pressure time limits
  • Space games with fast-paced gameplay

If you love games where every decision matters and every second counts, CosMiner will hook you.


🕹️ HOW TO PLAY

Controls:

  • WASD / Arrow Keys – Navigate your mining ship
  • Mouse Click – Mine asteroids (during mining phase)
  • Space – Quick actions

Objective:
Survive as many meteor waves as possible by mining asteroids for ammunition and defending your station's core.

Tips for Survival:

  • 🔹 Plan your mining route—zigzagging wastes precious seconds
  • 🔹 Prioritize large asteroids—they give more ammo per mining action
  • 🔹 Don't get greedy—leave time to return to base before the wave hits
  • 🔹 Upgrade strategically—balanced builds survive longer than one-sided ones
  • 🔹 Watch the timer—running out of time with empty turrets = instant death

💀 THE CHALLENGE

Most players die by Wave 5.
Good players reach Wave 10.
Can you beat Wave 20?

Every wave introduces:

  • More meteors
  • Faster meteors
  • Tougher meteors
  • Less time to mine

Your mining speed, turret placement, and upgrade choices determine your survival. One mistake and your station is space dust.


🚀 WHY PLAY COSMINER?

For Strategy Lovers:

Optimize mining routes, plan turret positions, balance upgrade paths. Every run teaches you something new.

For Action Fans:

No idle waiting. Constant movement during mining phase, constant tension during defense phase. Pure adrenaline.

For Competitive Players:

Push your limits. Beat your high score. How many waves can YOU survive?

For Casual Gamers:

Jump in, play a quick 5-10 minute session, jump out. Perfect for short gaming breaks.


🎨 GAME DETAILS

Genre: Tower Defense / Mining / Strategy / Survival
Platform: Web Browser (WebGL)
Controls: Keyboard + Mouse
Session Length: 5-20 minutes per run
Difficulty: Medium to Hard (scales with waves)
Replayability: High (every run is different)


🛠️ EARLY ACCESS & DEVELOPMENT

CosMiner is currently in early development with ~20% of planned features implemented. You can already experience:

  • Core mining-to-ammo loop
  • Tower defense wave mechanics
  • Basic upgrade system
  • Progressive difficulty scaling

Coming Soon:

  • More turret types
  • Special abilities
  • Different asteroid types
  • Boss waves
  • Leaderboards
  • Achievements

Your feedback shapes the game! Play now and tell me what you think in the comments below.


💬 COMMUNITY FEEDBACK WANTED

Found a bug? 🐛 Drop it in the comments.
Have an idea? 💡 I'm listening.
Love the game? ⭐ Rate it and help the project grow.

CosMiner is made by an indie solo dev who reads every comment. Your input directly influences development.


🏆 CAN YOU SURVIVE?

The void is waiting.
The meteors are coming.
Your turrets are empty.

It's time to mine or die.


Made with ❤️ by an indie game developer

CosMiner is free to play forever. No ads, no paywalls, just pure tower defense mining action.

Updated 7 days ago
StatusIn development
PlatformsHTML5, Windows, macOS, Android
Release date 46 days ago
Rating
Rated 4.3 out of 5 stars
(4 total ratings)
AuthorScripa Games
GenreSurvival, Action, Strategy
Made withUnity
TagsArcade, mining, Pixel Art, Space, td, Tower Defense, upgrades
Average sessionA few minutes
LanguagesEnglish, Russian
InputsKeyboard, Touchscreen
AccessibilityOne button

Download

Download
CosMiner_1.3.apk 57 MB
Download
CosMiner_Mac_1.3.zip 57 MB
Download
CosMiner_PC_1.3.zip 47 MB

Development log

Comments

Log in with itch.io to leave a comment.

(+1)

you sure could stop the game while I am trying to buy fing upgrades! >:-(

(+1)

damn game is fucking impossible!!!

these asteroids nuke your base to hell before you can do sh.t

like you simply cant collect enough ressources to get all 3 fire upgrades in time (if they even do anything).

cause while you got tons of the grey stuff, you gotta search way too much for any of the white stuff.
and even then, the backpack sucks.

like, upgrades come in multiples of 10 but backpack holds like 5 intially and only 8 upgraded?

takes you like 4-5 runs tog et enpough for even one upgrade!

by wave 7 at the latest they have nuked your base to oblivion -.-

Hey! Dev here, thanks for the detailed feedback! 🛠️

You're absolutely right about the pause issue - it's coming in the next update (this weekend!) along with a new spider unit that will help with base defense and add more firepower. Should help balance things out.

About the issues you mentioned:

  • Balance: You nailed it - currently max survivable is wave 8 out of 10. Working on tuning this!
  • Drill/pickaxe upgrades: They DO work - upgraded drill breaks blocks in 1 hit instead of 2, but I hear you on the resource grind. At the moment it is random
  • Fire upgrades/backpack: Still balancing this.
  • Pause during upgrades: 100% adding this with the spider update

The game is still in active development, and your breakdown of the problems is super helpful - this is exactly the kind of feedback I need to see where the experience breaks down.

Thanks for sticking with it to wave 7 and taking the time to explain what's not working. Really appreciate it! 🙏

Spider update dropping this weekend - hope it helps!

The update is live — and guess what? You’re on YouTube now! Check yourself out at 1:18 😄🎬

(-1)

Hey there, miners and base defenders! ⛏️🛡️

Thanks for checking out my prototype!

Right now, the game includes about 20% of the planned gameplay, but you can already feel the core mechanics: mine resources, haul them back to your base, and fend off meteor waves.

Your feedback means a lot — what works, what doesn’t, what could be better.

Found a bug? Throw it at me in the comments 😉

Don’t forget to rate the game — it really helps the project grow.

Let’s dig our way to something truly awesome together! 🚀