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If you like puzzle games and marbles today is your lucky day as I came across Flux Caves, which merges them into one game.

It's early-on in development but it has a pretty great idea. It's like piecing together an oversized marble-run, with each level having various tubes and other special blocks missing that you need to slot into place.

You can see some gameplay from an early version in the below trailer:

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There's a demo available on the itch.io store page, with the full version only currently costing $2. I've no doubt the price will rise as it becomes more polished and it's a pretty good deal right now.

While I love the idea, I do hope there's a lot more to it in the later levels as it was far too easy, everything was obvious since it's just sliding a couple of blocks to complete the pipe system that's there already. Once it's a bit more polished, I will likely pick up a copy and see what all the levels are like outside of the short demo.

Roll on over to itch.io to check it out. If you do try it out, do note the startup time on Linux is a little long.

Article taken from GamingOnLinux.com.
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19 comments

Maath Mar 22, 2019
This looks like fun. Though the puzzles are different, it kind of looks a bit like Portal, and a bit like The Talos Principle.
fubenalvo Mar 22, 2019
Hy there! I'm making the game and thought to answer for some questions
Soo yeah, the DEMO is really easy, there are much harder levels later, but I tried to make them enjoyable too. not an easy task to make puzzles which are hard enough but not too frustating. You'll tell me I succeseded with it or not :)

We'll see about the price. The top I thinked about is $5, but that will be later at the steam release. The target date is about end of may to publish it on steam. Ofc the version on itch.io will be updated constantly too.

Actually I'm working on versio 0.91 in this moments too, just sought big donation coming from this article, soo big-big thank you for the article and for the greatfull readers too! Thank you guys! :)
Solitary Mar 22, 2019
Quoting: MaathThis looks like fun. Though the puzzles are different, it kind of looks a bit like Portal, and a bit like The Talos Principle.
It's more like Sokoban meets the Pipes.
Solitary Mar 22, 2019
Quoting: fubenalvoHy there! I'm making the game and thought to answer for some questions
Soo yeah, the DEMO is really easy, there are much harder levels later, but I tried to make them enjoyable too. not an easy task to make puzzles which are hard enough but not too frustating. You'll tell me I succeseded with it or not :)

We'll see about the price. The top I thinked about is $5, but that will be later at the steam release. The target date is about end of may to publish it on steam. Ofc the version on itch.io will be updated constantly too.

Actually I'm working on versio 0.91 in this moments too, just sought big donation coming from this article, soo big-big thank you for the article and for the greatfull readers too! Thank you guys! :)

Hey, man. Just playing the demo and I managed to get past the "trial ends here" barrier and I am currently playing the later levels. This isn't suppose to happen, is it? :)
tuubi Mar 23, 2019
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Bought it.

Note that if you're in the EU at least, $2 is the price without VAT. Due to the way Itch.io and some other smaller stores deal with the whole EU VAT MOSS process, there doesn't seem to be a way to see the final price until a couple of steps into the checkout process. I'd be so much happier if I could just set my country in the preferences and see prices with tax in Itch.io listings and game pages.

I paid 2.48€ in the end. Of course that's still really cheap if the game is up your alley. I believe I'm going to enjoy Flux Caves, although I've got so much on my plate that I doubt I'll play it until it's properly finished.
fubenalvo Mar 23, 2019
Quoting: SolitaryHey, man. Just playing the demo and I managed to get past the "trial ends here" barrier and I am currently playing the later levels. This isn't suppose to happen, is it? :)

You run around and a level started when you went under a cave entrance? I'm just fixed this in the v0.91. It will be public in 1-2 days. ...or you find anything else? :)
Solitary Mar 23, 2019
Quoting: fubenalvo
Quoting: SolitaryHey, man. Just playing the demo and I managed to get past the "trial ends here" barrier and I am currently playing the later levels. This isn't suppose to happen, is it? :)

You run around and a level started when you went under a cave entrance? I'm just fixed this in the v0.91. It will be public in 1-2 days. ...or you find anything else? :)

I actually found two ways to go beyond. One was underneath the Level 13 building (I went around the barrier through the water) and jumped to the lip there is under the building and it warped me into the level and once I left the level I was free. Second one is much easier, I just jumped over the stones that are around the barrier (the left side, near the glass wall behind level 3 cave).


Last edited by Solitary on 23 March 2019 at 10:09 am UTC
fubenalvo Mar 23, 2019
Quoting: tuubiBought it.
Note that if you're in the EU at least, $2 is the price without VAT. (...)
I paid 2.48€ in the end. Of course that's still really cheap if the game is up your alley. I believe I'm going to enjoy Flux Caves, although I've got so much on my plate that I doubt I'll play it until it's properly finished.

Am I know this isn't a solution, but as I write on the itch.io site: Everyone who buy the game on itch.io, will get a steam key after the steam release, around May-June. Hope it makes this litle uncomforted feeling better :)
Liam Dawe Mar 23, 2019
Quoting: Solitary
Quoting: fubenalvo
Quoting: SolitaryHey, man. Just playing the demo and I managed to get past the "trial ends here" barrier and I am currently playing the later levels. This isn't suppose to happen, is it? :)

You run around and a level started when you went under a cave entrance? I'm just fixed this in the v0.91. It will be public in 1-2 days. ...or you find anything else? :)

I actually found two ways to go beyond. One was underneath the Level 13 building (I went around the barrier through the water) and jumped to the lip there is under the building and it warped me into the level and once I left the level I was free. Second one is much easier, I just jumped over the stones that are around the barrier (the left side, near the glass wall behind level 3 cave).
A simple solution would likely just big a big invisible rectangle barrier.
tuubi Mar 23, 2019
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Quoting: fubenalvo
Quoting: tuubiBought it.
Note that if you're in the EU at least, $2 is the price without VAT. (...)
I paid 2.48€ in the end. Of course that's still really cheap if the game is up your alley. I believe I'm going to enjoy Flux Caves, although I've got so much on my plate that I doubt I'll play it until it's properly finished.

Am I know this isn't a solution, but as I write on the itch.io site: Everyone who buy the game on itch.io, will get a steam key after the steam release, around May-June. Hope it makes this litle uncomforted feeling better :)
I actually like Itch.io despite this minor issue and of course I'm not blaming you. I do appreciate getting a steam key as well though. :)
RFSharpe Mar 24, 2019
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Quoting: fubenalvoso big-big thank you for the article and for the grateful readers too! Thank you guys! :)

Hi fubenalvo,

We certainly appreciate you giving us Linux support and we particularly appreciate a developer getting on the forums. I just bought the game on itch.io and am looking forward to playing it when I get home from work.

When I hear a game referred to as a "marble-run" I can't help remembering the fun I had playing Marble Madness on my Commodore 64 using a joystick. It was a great game and was a commercial success for Atari. I hope your game is also a success fubenalvo!
fubenalvo Mar 25, 2019
Quoting: liamdaweA simple solution would likely just big a big invisible rectangle barrier.
Yeah, that will happen in the next version, but it will be ready mid April I think. I'm collecting all the feedbacks and bug reports until then.
So, if somebody use that shortcut, then be it. Game development is just a hobby for me, so I wont starve then :D

Am, I made a really simple trailer at the weekend. What you think guys?
https://www.youtube.com/watch?v=VAPqtYwZTAc
fubenalvo Mar 25, 2019
[quote=RFSharpe]
Quoting: fubenalvoWhen I hear a game referred to as a "marble-run" I can't help remembering the fun I had playing Marble Madness on my Commodore 64 using a joystick. It was a great game and was a commercial success for Atari. I hope your game is also a success fubenalvo!

Omg this game looks like really fun, never heard about it before. Not all the western games went around on floppys in hungary to every town. We had that game, that the neighbout guy had. :D
I'll search a ROM for it and play on my old old amiga. Now I have a reason to turn it on again :)
Eike Mar 25, 2019
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Quoting: fubenalvoSo, if somebody use that shortcut, then be it.

I wonder, wouldn't just cutting out the other content in the demo be the easiest?
(Then again, for making a puzzle game you should think of all those crazy things people do to your game... :) )

Quoting: fubenalvoOmg this game looks like really fun, never heard about it before. Not all the western games went around on floppys in hungary to every town. We had that game, that the neighbout guy had. :D

It wasn't all that different here in Germany! :D
14 Mar 27, 2019
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Quoting: tuubiNote that if you're in the EU at least, $2 is the price without VAT. Due to the way Itch.io and some other smaller stores deal with the whole EU VAT MOSS process, there doesn't seem to be a way to see the final price until a couple of steps into the checkout process. I'd be so much happier if I could just set my country in the preferences and see prices with tax in Itch.io listings and game pages.

I paid 2.48€ in the end.
Are you used to seeing a final price before you put stuff in your cart? In the U.S., tax gets added to Steam purchases during checkout. Actually, sales tax gets added to a lot of online retailers now. It became law in my State not that long ago if I remember correctly.
Eike Mar 27, 2019
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Quoting: 14Are you used to seeing a final price before you put stuff in your cart? In the U.S., tax gets added to Steam purchases during checkout. Actually, sales tax gets added to a lot of online retailers now. It became law in my State not that long ago if I remember correctly.

At least in Germany, it's law that consumers have to be shown full price including VAT from the beginning (online as offline). (And that online retailers have to pay them, too, which seems obvious to me). The tax part of the price is shown explicitly in the end on Steam.
14 Mar 27, 2019
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Quoting: Eike
Quoting: 14Are you used to seeing a final price before you put stuff in your cart? In the U.S., tax gets added to Steam purchases during checkout. Actually, sales tax gets added to a lot of online retailers now. It became law in my State not that long ago if I remember correctly.

At least in Germany, it's law that consumers have to be shown full price including VAT from the beginning (online as offline). (And that online retailers have to pay them, too, which seems obvious to me). The tax part of the price is shown explicitly in the end on Steam.
Ah. Yeah, we don't have that. That would be kinda nice, especially for things that get higher up in price like $60, $200, $500, etc.
fubenalvo Jul 9, 2019
I need a little help from you guys! Vulcan API how common for the Linux Gamers? The game finally working again after I changed it from OpenGL to Vulcan.

The problem is, there are gamers, who could play it before with worse graphics, but normal framerate when it was OpenGL based.
Now, with the Vulcan API they got all visuals, but the framerate much-much worse for them.

So now I have to decide, to use Vulcan with a little bit worse performance, or use OpenGL and it wont run for everybody. What you think? If anybofy whant's to help, I can send test builds via email ([email protected])
tuubi Jul 9, 2019
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Quoting: fubenalvoVulcan API how common for the Linux Gamers?
Vulkan works fine for us, and we've got some very high-profile games making use of the API, like Dirt 4, Rise of the Tomb Raider, The Talos Principle, Hitman etc. It does require a GPU made in the last few years though. Not that your game would run with anything older anyway.

Quoting: fubenalvoThe problem is, there are gamers, who could play it before with worse graphics, but normal framerate when it was OpenGL based.
Now, with the Vulcan API they got all visuals, but the framerate much-much worse for them.
Your game is definitely smoother with -force-glcore42 than -force-vulkan. I guess that's due to Unity's less-than-perfect Vulkan backend, at least in whatever version of Unity your game happens to run on. Whatever you decide, I'm just happy if you get the Linux version of Flux Caves back up on steam.
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