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Planck Constant Games

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A member registered May 29, 2025 · View creator page →

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The game idea is quite interesting. I’m just a bit curious about how it relates to the Jam Theme.
The level design has a few issues.
For example, the lack of checkpoints. Not having checkpoints can make the game more challenging and encourage players to think carefully about their choices. However, since the obstacles in each level are mostly unpredictable, players are forced to try and replay multiple times. Because of that, the absence of checkpoints makes the game feel tiring to replay.
The game also uses physics-based logic, which increases randomness. For instance, in the same level, performing the same set of actions can lead to different results. This randomness can be fun because of its unpredictability, but keeping it that way throughout the entire game might not be a good idea.

Rate Half Left by Planck Constant Games, MiracleLambda72 for SCREAM JAM 2025 - itch.io  Hi, take my game {333

Your comments and following the product have helped us a lot in spirit. Interesting ideas will always be considered by our team. In the near future, there will be a more complete Demo for Steam. Please wait for this version. <3 

Thank you very much for your feedback. There are really tons of cool ideas that I want to put into the game design. Of course I will try to balance and bring the most interesting and suitable ideas to the product. All ideas I receive will be filtered and considered. <3 

Bold move. Willing to limit gameplay to convey a different message. It’s interesting that you’re an alien and yet feel alienated by humanoid televisions. But why a squid?

Thank you <3 

Bold move. Willing to limit gameplay to convey a different message. It’s interesting that you’re an alien and yet feel alienated by humanoid televisions. But why a squid?

Bold move. Willing to limit gameplay to convey a different message. It’s interesting that you’re an alien and yet feel alienated by humanoid televisions. But why a squid?

First of all, my young team at Planck Constant and I would like to express our sincere gratitude to all of you for taking the time to play our game, support us, and share your invaluable feedback.

This is our very first project, and we joined Scream Jam with a spirit of experimentation and learning. The amount of support and encouragement we’ve received has been both surprising and deeply heartwarming for us.

Once again, thank you so much for your incredible support!

Regarding the issue of AI-generated content

Regarding the recent questions about whether our game uses AI-generated content, here is our official statement and perspective on the matter.

Half Left does not use any AI-generated elements. Everything you see in the game, and everything we will continue to create, is entirely handcrafted. The Planck Constant team is committed to delivering original works, developed with our full dedication, creativity, and deep respect for our players.

As the lead artist and producer, I deeply understand the importance of putting one’s own thought and emotion into design. Creating mood boards, defining art direction, shaping concepts, and developing artwork based on game design needs — all of these are not just tasks, but my genuine passion and joy.

Here, I’d like to share a bit about the concept process for the main character in Half Left: . The initial requirement from the game designer was to create a female nurse character, which naturally explains her wearing a nurse outfit underneath. . After being infected, she has to wear a restraint suit inspired by the straightjackets used in psychiatric hospitals. . The LED and technological elements were designed to express gameplay mechanics and to make the character stand out in dark environments.

. After completing the initial concept design, I used part of the rendered concept as a base to create the game’s promotional poster.

. I also studied the top-down camera angle at different scales to determine the most accurate visual proportions for how she appears in the actual game.

And all of the designs - from the monsters and the world to the underlying story - were developed and researched with the same level of care and intention. However, due to the limited time during the Game Jam, we could only focus on expressing the core ideas and main gameplay mechanics.

Please continue to support, follow, and accompany us on our journey to bring Half Left to Steam - a full version that will embody our original vision for the game.

We truly need, and deeply appreciate, all of your support and feedback throughout this journey.

Thank you for loving Half Left. You can follow us on many channels to update the latest product information.

Sorry for the product still has many small bugs. You can try downloading game for a better experience. <3 

I will try to balance the game as best as possible before the official launch. I hope so :V

We will try to further improve this experience.

We will make it more interesting. Thank you for feedback <3 

Thank you all for playing the Game Jam version of Half Left. Thanks to your support and valuable feedback, we have planned a Steam version with enhanced gameplay and a complete story. Join us on our Discord channel to follow the game’s development! 🔥

I truly appreciate you for patiently playing the game despite the navigation issues. We will definitely update and improve the game so that players can experience it at their own pace, just like your feedback suggested. More importantly, we’ll focus on the story and concept, which we couldn’t fully develop due to the time constraints of the game jam. If you’re interested, please follow our Discord channel!

You know, all those notes are actually written in my own handwriting. When I was a kid, my teacher once told me that no one would ever want to read my writing because it was so messy. But now, if they don’t read it, they’ll get into trouble - making games is fun, isn’t it? :3333

Thank you for your feedback and for playing the game! The notes are actually my own handwriting, so yes -they can be a bit hard to read, and your suggestion is a really good one.

As for the movement issue, it might be related to the braking mechanic - when holding the brake, the player can push the wheels forward or backward to turn left or right. At the same time, our movement system can cause some loss of directional awareness from the top-down angle -something we’re still working to improve.

Once again, thank you so much for playing and for your sincere feedback!

You mean the game Endoparasitic? Yes, that’s right! We were inspired by that game, but we also implemented some different ideas :33333

We're really sorry about what you experienced, but this is just a lightweight web version of the game. Please try pressing F5 and playing in full-screen mode to see if it helps.

My team and I are truly happy that you played the game slowly, mindfully, and with real immersion.
It means even more to us that, as this is our very first game and game jam entry, we’ve had such a thoughtful player like you not only play but also create promotional content for us. We honestly didn’t expect to receive this much support from everyone.

That really gives us the motivation to develop a full and complete version on Steam, one that, thanks to your feedback, will be fully upgraded in both gameplay and visuals.

Once again, thank you so much. We’re setting up a community channel, and we’d be really happy if you could join our Discord to follow our devlog and upcoming updates.

Thank you for your feedback. Rolling the wheel with the mouse wheel has been tested. But I accidentally realized that everyone's mouse wheel is very stuck so I temporarily abandoned that method. As for the rest of your feedback, in the official version we will update more about the visual.

Thanks for the feedback. I'm also trying to find a balance in the movement system. <3 

Thanks for the compliment. The main product target is Steam. Hope you can follow us on Discord.

Glad you like the product <3 

I understand your difficulty. But I have no intention of making things easier in terms of movement. However, I will try to improve the best for the player experience.

The design is really impressive. The atmosphere is also very good. <3 

Thanks for your feedback. I have considered the option of adjusting the keys to suit the player's setting.

Your capsule and itch page are really eye catching. reminds me of the old horror style. But in game it's a bit different.

Lately I've been interested in pumpkin themed games, even though I can't even remember what day Halloween is. I wonder if it's possible to still create a horror feeling using a LCD screen.

You can follow discord to always have the latest announcements.

The style of the game looks very interesting. The juxtaposition of 2D and 3D is very creative. It feels both real and weird.

Really good game. i would totally play it if this was a full version. the theme is really good for halloween too. the only thing i think could be changed is the dash instead of being guided by the mouse maybe it should be guided with the left and right buttons. <3 

Our goal is to upload it to steam. <3 

Thanks for your review. <3 

We will try to fix the current bugs. See you in the demo on steam <3 

Very simple but extremely effective .

Good to hear your review. i hope you can play the game to the end <3 

I have designed both cases for now. If the general feedback from players is fast swapping, I will consider this case.

Weird ideas always interest me <3