Congrats your first game jam! It's a big step to build a game in a short time and then publish it!
I few things to consider if you plan to make improvements to this game:
- each jump felt a little like a trust fall. This is because the distance/height of the jump 'feels' like the target platform is a little too far away or a little too high to jump to. Most of the time you do end up making the jump, but it doesn't feel like you will. At least for me. I think one reason for this is the lack of see where I am standing. The camera angle feels very tight. You really lose track of the platform you are standing on while looking to the next one. I'm not sure if a change to field of view for first person would help, or maybe a little more zoomed out and camera set a little higher
- when jumping to a lower platform you can really tell the character is quite floaty (this may be a reason the player can make jumps that look to far away). Frequently the gravity scale is set a little higher on the player to provide more snappy movement.
- you could probably have different size platforms. On some larger platforms the player could walk around and have more options to plan a route. As is with the small square platforms, it's very limited to just hopping to the next.
- when reaching the 'end' of a series of platforms, it doesn't feel quite right to drop into the lava, the same as missing a jump/platform. This was probably to meet the theme of end/death to new beginning/new life...but it felt like a punishment for reaching the end. I think the player being moved to the start of the new map would have made for a more natural feeling of reaching the end and then starting on the next.
- I didn't hear any sound in the WebGL build. Sound effects can really reinforce what's happening on screen to bring it to life. Background music can really help set the mood.
Keep at it. Good submission.