Stop CO2 by cremmy
In a world with limited resources (and size), even air is precious. It's obvious that there will be people who won't be happy with someone digging coal and releasing it as carbon dioxide. You are the bad guy here.
Download
- Windows: http://crm.wyobraz.net/files/stopco2.zip
- MacOS: http://crm.wyobraz.net/files/stopco2_macos.zip
- Windows (mirror): https://www.dropbox.com/s/y7bly9jad7umv8r/stopco2.zip?dl=0
- MacOS (mirror): https://www.dropbox.com/s/1tiple2n00xdl2l/stopco2_macos.zip?dl=0
The Game
Stop CO2 is tower defense game with resource management.

Resources
- Workers
- Food
- Coal
- Power
Buildings
- Power plant
- Uses coal and food to produce electricity
- Each worker assigned gives 1 point of energy
- If it runs out of coal, then it will be shut down for a while
- Helipad
- Enemies spawn there
- Coal Mine
- Produces coal
- Uses food
- Farm
- Produces food
- Turret
- Uses 1 point of power plus 1 point per worker assigned
- Uses food
- Each worker decreases cooldown between shots
- If there are more turrets active than energy points produced by the power plant, then all turrets will temporarily shut down
How to lose the game
Either: * Let 6 enemies enter the power plant * Run out of food (your units refuse to eat coal)
How to play
- Place buildings on map
- Power plant
- Helipad
- Coal mine
- Farm
- Assign some workers to the coal mine (press Q or 1 when hovering over coal mine) - your food supplies will start to decrease and coal will begin to flow into your storage.
- Assign some workers to the farm until your food supplies stop decreasing (same as above).
- Assign workers to the power plant (same as above) - the more workers the more turrets you can have active, but you'll use food and coal at faster rate.
- Your coal supplies will start to decrease. Move additional workers to coal mine or remember to do that later. Running out of coal will cause your power plant to turn off for a while.
- Start placing turrets (press Q or 1 when hovering over empty tile)
- Yellow turrets are powered
- Gray turrets are unpowered (won't shoot enemies)
- Disabled turrets use food at low rate, but enemies can't pass through them. Try to make single long path for the enemies.
- If enemy wave is far from active turrets, disable them and enable ones close to the head of the wave.
- Defend the power plant - don't let enemies to it.
Additionally: * Turn off unused turrets to reduce energy usage (press E or 3 when hovering over turret) * Remove unwanted turrets to reduce energy and food usage (press R or 4 when hovering over turret)
- Move workers to farm when food levels are low (sound notification when less than 33% of maximum storage)
- Move workers to coal mine when coal levels are low
- Move workers to power plant when additional turrets need to be powered
- Remove units to reduce food usage (press W or 2 when hovering over building)
| Original URL | https://ldjam.com/events/ludum-dare/38/stop-co2 |
Ratings
| Overall | 593th | 3⭐ | 26🧑⚖️ |
| Fun | 583th | 2.792⭐ | 26🧑⚖️ |
| Innovation | 490th | 2.917⭐ | 26🧑⚖️ |
| Theme | 456th | 3.292⭐ | 26🧑⚖️ |
| Graphics | 501th | 3.167⭐ | 26🧑⚖️ |
| Audio | 479th | 2.227⭐ | 24🧑⚖️ |
| Humor | 378th | 2.6⭐ | 22🧑⚖️ |
| Mood | 682th | 2.5⭐ | 24🧑⚖️ |
| Given | 32🗳️ | 37🗨️ |
@wtoa, @holgk - Just SDL2 (+image +mixer) and C++, no hidden catch, no strings attached.
@tombishopspg - Seems like you ran out of coal.
I'll try to rewrite "how to play" part of the description.
Some tutorial or text explanations inside the game could be helpful. I had to switch back and forth between the game and your explanation on this page.
It is however much better than I could do in 48 hours! So still great work! :-)
I enjoy resource management games and tower defense games so it's the perfect genre really. Would love to play any potential future version.
*My anti-virus found a virus in http://crm.wyobraz.net/files/stopco2.zip but not in the mirror. I not trust my anti-virus, but I say you anyway.*
I also like that you can place the spawn point of enemies, which allows you to callenge yourself and make the game harder. Well done!
I could not quite master this game, but I could tell there was a lot that went into it. I may revisit it later when I have time to try and understand what I was missing. I think the thing tripping me up was allocating the resources into the towers, which wasn't immediately intuitive.