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Stealthy platformer Kiyo in need of Linux testers

By - | Views: 40,059

Developer Pixel Rats emailed in about their stealthy platformer that now has a Playtest available on Steam, and they're requesting backup from Linux players to see how it runs across different systems.

More about it: "Sneak, fight and sabotage an evil bunny corporation in this stealthy platformer. Join a resistance group of animals trying to get their home planet back from the paws of evil rabbits. Master stealth, swing with ninja ropes, crack tricky puzzles and enjoy satirical humour!"

The developer mentioned they wrote their game engine from scratch, so it's vital they get as many people as possible to give it a go to ensure the eventual release works well. Check out the trailer showcase below:

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Game Features (from Steam):

  • Semi-open overworld.
  • A complex story with a narrative alluding to real-life societal issues.
  • Stealth gameplay.
  • Dynamic lights and shadows that influence the gameplay.
  • Enemy AI that responds to visual, audio and environmental inputs (important while sneaking).
  • Physics-based ninja rope and archery.
  • Original synthwave soundtrack and immersive audio design.
  • Proprietary engine.
  • Pole dancing.

You can join the Playtest on Steam. Just scroll down to the banner when logged in to request access.

Article taken from GamingOnLinux.com.
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I am the owner of GamingOnLinux. After discovering Linux back in the days of Mandrake in 2003, I constantly came back to check on the progress of Linux until Ubuntu appeared on the scene and it helped me to really love it. You can reach me easily by emailing GamingOnLinux directly. Find me on Mastodon.
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69 comments
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Eike Feb 29
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Quoting: ShabbyX
Quoting: Eike
Quoting: mitridasSounds like I need to do some serious Wayland testing myself... thanks for letting me know.
Btw, if you press backspace in game you'll get a live perf graph - it should tell you whether the slowdown comes from the rendering (most likely) or something else.

Of course it's always good to support many different systems, but as a resort, you could narrow down your system requirements.

That's fine if forward looking (like, I don't support old drivers, x11, old glibc etc). Not a good idea if the requirements are that you can't use new stuff! That makes the game obsolete in no time.

Even of the GoL readers, two thirds are using X11:
https://www.gamingonlinux.com/users/statistics/#SessionType-top

So in my humble opinion, X11 is not the old, but the current system.


Last edited by Eike on 1 March 2024 at 9:49 am UTC
ShabbyX Feb 29
Quoting: Eike
Quoting: ShabbyX
Quoting: Eike
Quoting: mitridasSounds like I need to do some serious Wayland testing myself... thanks for letting me know.
Btw, if you press backspace in game you'll get a live perf graph - it should tell you whether the slowdown comes from the rendering (most likely) or something else.

Of course it's always good to support many different systems, but as a resort, you could narrow down your system requirements.

That's fine if forward looking (like, I don't support old drivers, x11, old glibc etc). Not a good idea if the requirements are that you can't use new stuff! That makes the game obsolete in no time.

Even of the GoL reads, two thirds are using X11:
https://www.gamingonlinux.com/users/statistics/#SessionType-top

So in my humble opinion, X11 is not the old, but the current system.

Yes, x11 is majority now, but as the trend shows it's set to die out. Dropping support for wayland means the game is not runnable in 5 years, and fewer and fewer users each year until then. Dropping support for x11 on the other hand (if needed), means fewer users today, but support for all users after 5 years up to infinity years.


Last edited by ShabbyX on 29 February 2024 at 2:15 pm UTC
mitridas Feb 29
At this point in time, a game needs to work both on x11 and Wayland.
I know SDL very well and if things turn out too ugly I'll possibly end up using it.

Anyway, I pushed an update to the playtest that should hopefully solve the startup issues related to badly portable binary. (Got myself Ubuntu 20.04, switched from gcc 13 to Clang 16 [can't go any lower than that] + libc++ and packaged the dependencies).
Would be very useful to know if it now works fine in native mode for the people who were unable to start it previously (Steam Deck anyone)?
It's probably still gonna fail on much older systems though - but that's ok I guess.
tfk Feb 29
Well, it starts on Steam Deck. But I only hear the audio. The display shows the rotating Steam logo and that's it. Need to do further testing in desktop mode.

Edit: Tested on Destktop Mode. The window's width and height are swapped. The engine does not recognize that the screen on a Steam Deck is rotated. Like with a phone. That's why it probably doesn't want to display an image in game mode.


Last edited by tfk on 1 March 2024 at 8:39 am UTC
It does start fine now in native mode (had to switch compatibility mode to 'scout' for the first start, but that is a steam issue after using proton before) Game seems to work nicely otherwise, but the sewers still have the slowdown issue with CPU load in the high 90s and GPU load in turn going toward single digit. Same behavior has been previously observed with Proton.


Last edited by Schattenspiegel on 1 March 2024 at 5:38 am UTC
mitridas Mar 1
Quoting: SchattenspiegelIt does start fine now in native mode (had to switch compatibility mode to 'scout' for the first start, but that is a steam issue after using proton before) Game seems to work nicely otherwise, but the sewers still have the slowdown issue with CPU load in the high 90s and GPU load in turn going toward single digit. Same behavior has been previously observed with Proton.

Ok, will keep investigating.

Quoting: tfkEdit: Tested on Destktop Mode. The window's width and height are swapped. The engine does not recognize that the screen on a Steam Deck is rotated. Like with a phone. That's why it probably doesn't want to display an image in game mode.

Ah, sounds like you found something interesting there. I didn't know about that... to be honest I didn't do any research into Steam Deck itself, I just tried to wing it with the Linux build but clearly further steps are needed.
Better if I also switch to KDE Plasma (according to this page, it's what the Deck uses: https://partner.steamgames.com/doc/steamdeck/testing )
Thanks!


Last edited by mitridas on 1 March 2024 at 10:00 am UTC
tfk Mar 1
I think the resolution thing is caused by directly reading the with and height of the screen and setting those values to the dimensions of the window. The Steam Deck probably reports it as 800x1280 and thus the window is set to 800 in width and 1280 in height. So a check to see if the width is smaller than the height and then reversing those should give your window the right dimensions.
emphy Mar 1
New version starts! Love the crt look though the textboxes don't seem to get the crt-treatment. Apart from that, maybe some "glow" between the "pixels" could be a nice extra.

I do seem to be getting the same slowdown that others have reported. Starts off smooth as butter, but performance gets really bad fairly quickly.

Latest linux mint xfce (so: no wayland), with an rx6600. I will check later if a newer kernel could alleviate the issue.


Last edited by emphy on 1 March 2024 at 1:51 pm UTC
tfk Mar 1
Quoting: emphyNew version starts! Love the crt look though the textboxes don't seem to get the crt-treatment. Apart from that, maybe some "glow" between the "pixels" could be a nice extra.

I do seem to be getting the same slowdown that others have reported. Starts off smooth as butter, but performance gets really bad fairly quickly.

Latest linux mint xfce (so X), with an rx6600. I will check later if a newer kernel could alleviate the issue.

Interesting! So it's not a Wayland issue. I'm running Fedora 39, which has a very recent kernel. Others have noted that the CPU load increases when in happens.
mitridas Mar 1
Quoting: emphyI do seem to be getting the same slowdown that others have reported. Starts off smooth as butter, but performance gets really bad fairly quickly.

Latest linux mint xfce (so: no wayland), with an rx6600. I will check later if a newer kernel could alleviate the issue.

Ah, so it's starting to look like an AMD-specific rendering slowdown then. Hopefully I'll be able to get to the bottom of it on my own system.
BTW, I've just managed to add a special feature that's been Windows only so far: the desktop hacking effect that occurs the first time one starts the game.
I'll be curious to hear what you think, will post an update here when it's uploaded!

And as far as Steam Deck goes, I don't think it's as simple as exchanging the X&Y of the window... I'm afraid I need to get my hands on one of those bad boys if I want to get the game working properly on it, so it will be a while.
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