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A jam submission

CarbonbustersView game page

Transform car-centric infrastructure in this sustainable transit sim
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Play transit sim

Carbonbusters's itch.io page

Game Title
Carbonbusters

Developer Name
CO2 Studios

Short Promo Blurb
Reimagine car-centric infrastructure to reduce transportation emissions in this green transit sim.

Full Description
You’re a carbon specialist contracted to help reduce emissions in various cities. Your goal is to build improved transit paths and lower carbon emissions to 0%. Make sure to prevent emissions from reaching 100% to avoid an environmental disaster.
The game begins with a car-dependent city with high transportation emissions. The player must change the infrastructure in the city to reduce transportation emissions and gain political support/approval by making a positive impact on the citizens. This approval will allow the player to make larger and larger changes, for example, beginning by putting in bike lanes and building up to tearing up a highway to build a rail line.

Promo Image(s)
https://drive.google.com/drive/folders/1JbzZ3aU8yCalgdMNKrCls0l3SVedT0aq?usp=drive_link

Promo Video
https://drive.google.com/file/d/1JJNAaz_KFJNIn5F5ezv0vbFJhpVlmPks/view?usp=drive_link

Artistic Statement / Use of Theme(s)
Our game incorporates the theme of the jam by focusing on the significant impact of transportation choices on carbon emissions and their correlation with climate change. By engaging players in the transformation of car-centric suburbs into environmentally friendly, livable spaces, we aim to educate and inspire them about the importance of sustainable infrastructure. Players experience firsthand how reducing emissions can positively affect the environment, reinforcing the theme of "Change the Story."

Our artistic intentions are reflected in several unique design choices. We decided to use political support as the currency instead of money, emphasizing the social and political aspects of urban planning. We also chose to model parking lots, which are often overlooked in city games, to highlight their space inefficiency and potential for better uses. By emphasizing pedestrian and bike infrastructure, we aim to counter the car-centric focus prevalent in many city games, such as Cities: Skylines, which often default to suburban sprawl and car-dependent urban layouts.

Inspirations behind our work include the minimalist visual design of Mini Metro and the thought-provoking insights from Molleindustria’s "Games for Cities" talk. We draw on the engaging game loops of city and transit sims like SimCity and OpenTTD, while deliberately subverting the conventions of games like Cities: Skylines and SimCity. By focusing on sustainable solutions and the complexities of improving existing infrastructure, we aim to offer a fresh perspective on urban planning and transportation in gaming.

Through our game, players learn about the intricate balance of urban development, the importance of sustainable infrastructure, and the transformative power of individual and systemic change. This project not only aligns with the jam's theme but also strives to educate and inspire players to envision and create a more sustainable future.

Development Summary
In total, 12 people were involved in this project. Our original idea was for players to build transit cities, but due to the scope, we decided to narrow it down to walkable cities where players can add sidewalks, bike lanes, and lampposts. Initially, we dreamed of including more transit types like buses and metros/rail, but we focused on cars, pedestrians, and bikes since pedestrians and bikes could be modeled similarly, unlike buses and rail which would require managing multi-person vehicles on schedules.

We encountered several surprises during development. Setting up a day and night cycle visually was much easier than we anticipated, thanks to Godot's user-friendly animation players. However, we were shocked to discover that Godot doesn't support FBX files, requiring us to reformat our assets.
Pitfalls included our collective lack of experience with Godot, which we had chosen as a challenge. We also failed to break down tasks early on and plan for each milestone adequately. Some issues with GitHub led to the creation of multiple branches, with some buggy branches left unresolved. It was challenging for our programmers to collaborate because we didn't granularly plan or paper prototype early enough, leading to the need to rebuild some systems due to incorrect assumptions.

One of the hardest things to cut from our concept was the inclusion of trains, which we hope to add in later versions. Our downfall was not wanting to cut any features, resulting in a crunch at the end to make everything happen—worth it?

Release Plan
Current releasability:
Minimum Playable Prototype

A couple of us plan to keep working on the project in the future until the steam release

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Comments

Submitted

I did have the emissions glitch but I thought this was very cool overall, and I'm not even really someone that usually plays city builder-type games! I really like the inclusion of a tutorial and the concept of being able to help out specific individuals during game play. I love the idea of trains being added and I think it could also be cool to include different towns people can play in!

Submitted

I also ran into the same emissions glitch, but aside from that, I enjoyed the gameplay a lot! The art style was simple, but clean and nice, and worked well with the music. I thought the concept and gameplay was fun, and I can't wait to see it with a little more refinement and bug-fixing!

Submitted

I ran into the same glitch of emissions reaching 100% despite implementing bike lanes/ trees/ sidewalks, but you all did a great job! I like the art style and the simple mechanics made gameplay intuitive and not over-whelming. I would love to get the full experience of my actions affecting the emission rate, but besides that, you all did a great job. I also really appreciated the tutorial. I think this is a promising game with many directions you could go in, but it is also successful as is with some minor bug-fixing!

Submitted

Gameplay: Same glitches as others, but with the tutorial it was quite easy to play.

Art: Simple polygon art. It fit quite well. Reminded me of the old sim city!

Audio: Really enjoyed the music and the fact you put the artist/song name in the top.

Overall: Cool game. I'd like to see more features in the future. I'd look at sim city or any other city management game and incorp gameplay from it, but keep your focus on climate and not just earning money. 

Submitted

I ran into the same glitch others mentioned, where emissions hit 100% despite any of my actions. So, I don’t think I got the full experience. That said, your tutorial was fantastic and really helpful. The game felt super polished, clean, and well-thought-out—so really impressive you guys pulled through during the time crunch! I loved the sound effects; I think they kept me engaged in the absence of narrative elements. As someone who's really into urban planning, I appreciated the theme and had fun with the map.

For improvements, it’d be awesome to see more features showing how the changes positively impact the city and its people. Maybe you could add a mailbox or newsletter mechanic where players can see public reactions to their changes. It would make the town feel more alive and less like a lab simulation. Overall, great job!

Submitted

I really like that there is a tutorial at the beginning. It helped me to understand the mechanics of the game first. The art style was really nice. Music was also catchy. Adding more features can make this game even better, like allowing players to add more trees in the same spot.

Submitted

Really appreciated the tutorial at the beginning! It was very helpful in understanding the mechanics. The game as a whole is very cohesive. The models and environment were really clear and worked well with the gameplay, although I do think there's a glitch when planting trees where it just deletes the space instead of adding greenery instead of saying you can't afford to plant them. The music also helps me engage with it a lot. I think your idea is great, and I enjoy your game so far, so I'm excited to be able to play it when the emissions and approval glitches are fixed!

Submitted

This was really fun to play and interact with! I had so much fun clicking objects and the sound effect that plays when you add a bike rack or tree is really satisfying and encourages player engagement. I love what I see so far and I would love to see more interactions with people in the city or an in-game navigator that talks and helps to guide the player with what they should do. Overall, really impressive and I would love to play a more polished version!

Submitted

Well polished and delightfully minimalistic! I enjoyed adding sidewalks and bike lanes to my city, although it would've been nice to provide more customization options. The overall structure of the map is fun to work with but I was unsure if I was able to reconfigure parking lots or add more greenery. I'm assuming a lot's dependent on the emissions level going down (I presume I ran into the same glitch as other commenters here!) Would love to play once this is fixed.

Submitted

I don't know if I was doing anything wrong but I wasn't able to stop the emissions from skyrocketing at the beginning of the game. I tried quickly building sidewalks and bike lanes but it just resulted in the emissions reaching 100% and my support staying stagnant until I used it all up. This game is a great concept, I would love to see little cars, bikes, and people navigating the city but I just couldn't figure it out.

Developer

Thank you for the feedback! Yes, sadly we ran into some issues getting the agents to show up which in turn caused value issues. We do have little cars, bikes, and people models eager to be shown in the game so keep on the lookout for an updated build with the agents up and running again >:D! Hope you enjoyed it!

Submitted

There was a lot of artsyle and polish here. But I'm not sure if my game bugged out or what but whenever I started a game the emissions would just go up insanely fast and nothing I could do would stop them and in a couple minutes it was at 100% but nothing happened. All that was left to do was place new trees and bike lanes and such which didn't make the emissions go down. I just kept adding things until I ran out of support without much reason and I never encountered any concerned citizens like it said I would in the intro. I'm also not sure how or if your supposed to be able to get support back. Interesting concept and I love the sound effects but it didn't seem to be fully working for me.. 

Developer

Sadly towards the end, we ran into some issues with getting the agents to show up, which then caused some wacky issues with the values ;-;. However, we are continuing to work and update the game to get the agents up and runnin' again! Keep on the lookout for a new build >:D. I hope you enjoyed it!

Submitted(+3)

I absolutely love your art style. It's incredibly polished. Can't wait to see more content! In a short period of time, the game development has achieved a high level of completion! Nice Job!!!!