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A jam submission

BloodStreamView game page

A game about navigating the circulatory system! GMTK Game Jam 2025 Submission
Submitted by gilbz — 1 hour, 19 minutes before the deadline
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BloodStream's itch.io page

Results

CriteriaRankScore*Raw Score
Creativity#16993.8003.800
Narrative#29412.5502.550
Enjoyment#47642.7002.700
Artwork#55852.6002.600
Audio#61572.2002.200

Ranked from 20 ratings. Score is adjusted from raw score by the median number of ratings per game in the jam.

How does your game fit the theme?
You act as a red blood cell in the circulatory system of the body, and constantly loop around!

(Optional) Please credit all assets you've used
Downloaded assets
- https://opengameart.org/content/seamless-water-tiles
- https://opengameart.org/content/animated-water-texture-128px
- https://github.com/immaculate-lift-studio/Godot-Ocean-Shader/blob/main/ocean_surface/clear%2Bsea%2Bwater-2048x2048.png
- https://opengameart.org/content/700-noise-textures
- https://freesound.org/people/qubodup/sounds/442773/
- https://poly.pizza/m/59muuwqSsq carrot by kenney (i edited it after)
- https://freesound.org/people/modusmogulus/sounds/792520/
- https://freesound.org/s/133901/
- https://opengameart.org/content/crosshair-pack-200%C3%97

Attribution:
- Sound: Motorboat on the Mekong River, Ben Tre, engine noise as boat runs up river | Produced by Martinimeniscus | CC0 1.0 Universal License
- Sound: Motorboat on the Mekong River, Ben Tre, engine runs, slows to almost conking out, starts again and accellerates | Produced by Martinimeniscus | CC0 1.0 Universal License
- Sound: Lava loop.wav by Audionautics -- https://freesound.org/s/133901/ -- License: Attribution 3.0

Everything else by me :)

(Optional) What would you like to be called if GMTK features your game?
gilbz

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Comments

Submitted

Cool game idea! I agree with others that a minimap or map screen (maybe of the human body?) could be a great addition. The boat physics were very nice!

Submitted(+1)

Fun game ! The viruses are creepy af !

Submitted(+1)

The concept is excellent! At first it even feels like a horror. Especially at the moment when you are calmly floating in a narrow space, turn around, and suddenly there is a virus floating in the distance. But I got lost, accidentally swam against the current and died.

Submitted(+1)

I really liked the aesthetic you went for. The game felt unsettling but in a good way. I think the idea of helping the body from the inside is also a cool idea but like others said, I wasn't quite sure where to go. Maybe smaller rooms with features in each room differentiating them would help (ex like beating walls for a heart, etc). Regardless, it was a really creative submission!

Submitted(+1)

I like the idea of playing as a red blood cell in a delivery game! I had a hard time differentiating between the different locations, so some more visual cues would have been helpful.

Submitted(+1)

Great game, very creative, I like that the map is an actual body, thats very cool. Good job!

(PS: I didn't know the bloodcells swim in little blood motorboats :D)

Submitted(+1)

Very interesting concept, educational games are always great. Unfortunately the controls were kind of hard to manage and the correct direction could have been made more obvious. The minimap idea could have also improved the experience.

Submitted(+1)

Interesting take on the theme! It's some kind of educational content you made!
Sadly controls where a bit rough and as others said it lacks some kind of minimap, but congrats on making this 💖

Submitted(+1)

The trippy visuals weirdly fit so good in the game. The camera is a little too sensitive, and also definitely could've used some guidance on where to go.

Developer(+2)

Thank you for the feedback! I should have made it more clear but you can change the mouse sensitivity in the pause menu with P! Yeah I added an arrow to show where to go but it's a bit buggy and unclear :). Thanks for playing!!

Submitted(+1)

Whata a cool concpet!

Submitted(+1)

This is a really interesting idea! Agree with some other comments that a minimap would've been very helpful and maybe some visual signs that a corridor is meant to be a one way (I spent a little too long trying to swim upstream not even realising I was going the wrong way). I also didn't realise there were enemies already chasing me near the start of my playthrough and totally got jumpscared when I swung my camera around and saw like 10 germs chasing me lol. Great game! Sometimes the camera goes a little wonky but its not too bad.

Developer(+1)

Yeah I was worried about the one way/going backwards aspect! I designed the map in a way where I thought it would be cool to show it on a minimap, but unfortunately I just didn't have enough time to implement that. Thanks for playing!!

Submitted(+1)

Pretty clever take on the theme! A minimap would have definitely been amazing for a game like this, but I guess not having it kinda adds to the reward of figuring out where to go,  good job!

Submitted(+1)

Absolutely loved the absurdity of the blood cell - also kudos on the system - it's a very clever way to think about a loop. Well done guys!

Submitted(+1)

Yo the system is good, keep up the good work :D

Submitted(+1)

the boat movement is cool nice! circulatory system is realy smart

Submitted(+1)

I LOVE the outboard motor on the cell!

Submitted(+1)

Kinda janky, but it's fun!