are you sure those deps are actually from the game or depencies of the libraries that shadwen is linked against ?
ldd throws all of those together, so the output doesn't really help.

for example:
tome show the "same" symptons:
$ ldd t-engine | grep png
libpng12.so.0 => /usr/lib64/libpng12.so.0 (0x00007f3b9a737000)
libpng16.so.16 => /usr/lib64/libpng16.so.16 (0x00007f3b97ec7000)

but if you actually take a closer look you will see that the game only links against libpng12:
$ objdump -x t-engine | grep NEEDED
NEEDED libm.so.6
NEEDED libdl.so.2
NEEDED libSDL2-2.0.so.0
NEEDED libSDL2_ttf-2.0.so.0
NEEDED libSDL2_image-2.0.so.0
NEEDED libpng12.so.0
NEEDED libopenal.so.1
NEEDED libvorbisfile.so.3
NEEDED libGL.so.1
NEEDED libGLU.so.1
NEEDED libpthread.so.0
NEEDED libgcc_s.so.1
NEEDED libc.so.6

however the libSDL2_image library from my distro is linked against libpng16:
$ objdump -x /usr/lib64/libSDL2_image-2.0.so.0.0.0 | grep NEEDED
NEEDED libpng16.so.16
NEEDED libjpeg.so.62
NEEDED libtiff.so.5
NEEDED libz.so.1
NEEDED libSDL2-2.0.so.0
NEEDED libpthread.so.0
NEEDED libc.so.6

That gives you the result that ldd shows libpng12 and libpng16, even though the game only uses 1.2 directly.

edit:
i suspect switching to libpng16 would be a problem for all ubuntu users, so that's not really a solution i think.

I've created a wishlist for those who want GOG to indicate which releases are missing level editors on the store pages.

Shadwen has similar result - it's using libpng 1.2 directly, and apparently 1.6 is used by some other library.

Why is it a problem with Ubuntu? They didn't backport libpng 1.6?

If it's not easy to have the editor work separately from the workshop then they've done something wrong. It shows that they have given no consideration for platforms besides Steam or their users. For decades we've had mod/map tools that output files that users can simply .zip up and distribute however they want, and now all of a sudden that's too hard because there's a hosting service tied to one of the distribution platforms?

It's bad for us, as it means we get a version that's missing a substantial feature (and it sounds like there's a high chance that GOG users will be screwed with delayed/missing updates too).

It's bad for GOG, as they're selling an inferior product and this will negatively impact how they are viewed by potential customers, reducing the likelihood of people buying from GOG again or recommending them (as they risk missing out on significant features and updates if they buy games here instead of Steam). GOG already has a reputation for slow & missing updates and missing Linux/Mac versions and it won't help if devs are actively trying to shepherd users towards Steam by doing things like this as well.

(This also forms a negative feedback loop of users not buying games here because of developers not providing much support for releases here, resulting in developers not putting much effort into supporting releases here due to lack of users buying here...)

It's bad for gaming in general as it tightens Steam's near monopoly on the PC games market and it gives the Steam Workshop exclusivity on mods/maps in cases such as this.

I see this: http://packages.ubuntu.com/search?keywords=libpng

They have 1.6 in Xenial and Yakkety. May be developers can also build it for older ones and ship it with the game.

exactly :)

xenial (16.04) was basically just released, and Yakkety is the next release to be released in half a year.
Setting that as a requirement would be bad for all the users who are still using 14.04 (or 15.10).

and libpng12 is still available on 16.04 as well. So staying with libpng12 really seems the best way atm.

And every other distro i know still has libpng12 available as well. The real problem is that debian just dumped the old version and all old 3rd-party software now has a problem.

it may be an idea to make a support ticket and ask the GOG people to bundle libpng with the game. Not sure how strict their guidelines are in that regard, since game works just find on the supported distros.

It's something that developers should do rather than GOG. I actually proposed that for them here. A better solution would be to bundle 1.6 however, this way they won't be stuck with obsolete library.

I stopped reading at "escorting a little girl"

Sorry; I hate escort missions with a passion.

And allowing only mods with the steam workshop, the worst source for modding in this world, is the final nail in the coffin.

You actually can play as that girl, so she isn't just AI controlled.

Unless it's very difficult on a technical level or, for some weird reason, you want to steer people away from buying the GOG version (if so, why release the game here in the first place?), I'd very much encourage you to change this. GOG users are sick of buying inferior products.

I do so too but for some reason they changed the A.I with the girl. I have never lost because they found her, her A.I is apparently too good for that. I suppose if you order her to walk right into the sight of a guard she will be noticed but otherwise it's fine, it's actually weird why she's even in the game at all other than excuse to have some to escort. I play on Hard but I'm not sure that changes anything, all it says that there's no guard POV (Easy) and highlight (Normal).

They should have added more interactivity with her, preferably something that makes her react depending on how and how often you kill people.

I didn't finish the game yet, but they hint that story depends on how Lily will react. But I agree, this reactivity seems to be very limited. I'm also playing on hard.

For more details about gameplay see

http://www.frozenbyte.com/2016/05/shadwen-playstyles-23-non-lethal/
http://www.frozenbyte.com/2016/05/shadwen-playstyles-13-completely-lethal/
http://www.frozenbyte.com/2016/05/shadwen-playstyles-33-best-of-both-worlds-2/

If you're going to sell an inferior version of the game here, then please don't even bother next time. You let GOG promote you with the demo, and then you treat its users like second class citizens. This kind of stuff hurts the site as a whole, and is unfair to any customers you may have here. Unless the situation with the editor changes, I can no longer support Frozenbyte or their products. I really hope you'll consider making things right here.

Changed my mind, won't buy the game,
I don't want to buy a product with missing content.

Voted.

GOG should put that notice on the game-pages a.s.a.p. They can always take it down if things change in the future, but omitting it is misleading potential customers.



That's a pretty bad move. You're practically saying you've released an inferior version for no good reason, and have no intention of rectifying the situation. Pretty disrespectful to us, and GOG.