Same issue here on Ubuntu 18.04 with freshly bought and installed Trine3

How can i get the game working ?

You can use libpng12 from older releases: https://packages.debian.org/oldstable/libpng12-0

Add it to libs that are loaded for the game with LD_LIBRARY_PATH.

Also, file this issue for GOG, who should support newer distros. So they should bundle the library with the game now since developers aren't likely to do anything about it and recent distros have dropped it completely.

I'm trying to run Singularity on Wine but I'm having a bit of trouble doing so. I first created a prefix and ran the .exe installer with no trouble but I still have 2 .bin files which I have no idea what to do with, could someome please advice me on what to do?

Did Linux drop compatibility with old hardware again last five months or so; moving the oldest usable hardware forward with years? The dropping of 32bit versions of distros is already known to me but did the kernels also drop it?

That depends on how old. Linux planned to drop actual i386 hardware for example. What's supported is i686. But i386 is often used as a misnomer while referring to i686.

See:
en.wikipedia.org/wiki/P6_(microarchitecture)
https://en.wikipedia.org/wiki/Intel_80386

I solved my problem that lead to me asking the previous question.

I was always before very impressed with the updater in Linux Mint and how it was so good at installing the packets in a suitable order and then immediately, unlike Windows where it will show no more updates for one day, offering you the next batch of updates. That is, until now; I had to manually pick some updates, install them and then pick a new batch. What to choose was very far just plain guesswork here but I left the Linux kernel update for last then restarted (as one needs to if you want to use the new kernel).

So, my laptop from 2004 still works with a new distro and kernel and the problem was elsewhere.

Dunno if this is the best place to ask, but I prefer running Baldur's Gate and Planescape in GemRB vs the Wine wrapped version GOG provides. Everything was fine with the AUR version in Manjaro, but in Ubuntu, the game is stretched to fit the screen no matter what resolution I have entered into the config file. Anyone with any experience with GemRB know what the reason might be?

You don't like the remasters?

Not really. The new content sticks out from the rest of the games. Especially the writing. And GemRB kinda needs all the support it can get right now. It's in a very similar situation as Exult: Not enough devs and a lack of attention is part of the reason for that. So I run GemRB and report bugs that I find. I just have no idea why the screen is stretching in Ubuntu when it didn't in Fedora or Arch.

Check if either distro is applying patches to either GemRB or any of its dependencies related to getting the screen set up. I've seen various cases of upstream cursing the name of Ubuntu (eg. Audacious Media Player) because of the bug reports they got which turned out to be caused by under-tested patches being applied by package maintainers.

If this is still an issue in Disco Dingo I'll do just that. I do wish the GemRB devs would reconsider adding a launcher akin to the one OpenMW has.

Having to reinstall some games do to the death of a drive. The GOG installer GUI doesn't pop up anymore though. I've tried a few games, and it takes me to the CLI version of Mojo. Is this a deliberate change I missed or is something break in 19.04?

Anyone fancy free Braveland games in the gog giveaway?

Hello, I just switched to Manjaro and tried running some of gog games when I launch them from start menu all of them are not launching. But when I launch them from their directory, all of my games are showing "failed to execute child process (No such directory found)". Is there a way to solve it?

If the games do not launch, that means, most probably, that there are some dependencies missing.

1) Try to consult the games' system requirements on their respective pages; there is some information on which libraries should be present (preferably both 32 and 64 bit versions).

2) But given that the requirements are for Ubuntu only, it is entirely possible Manjaro lacks some of the Ubuntu's libs that are assumed by GOG to be present by default and were not mentioned in the requirements. In this case it may be necessary to manually determine the missing parts. Try consulting related games' subforum topics.

3a) Provided the above did not help, it is time to resort to "heavy artillery". :) You can go to the game's directory, find the executable and analyze its dependencies. Please note, that in most cases GOG "wraps" its games in redundant (most of the time) launch scripts ("*.BAT" analogues) and all automatically created desktop and menu icons point to the script, not the game executable directly and the "failed to execute child process" error message is actually triggered by the script which somehow failed to find the game executable. There should be a sub-directory called "game" in the installation directory, residing alongside the aforementioned "start.sh" script and "docs" and "support" sub-direcrories. It is this "game" subdirectory which is needed and it contains the game itself.
Inside, there are differences and the contents are dependent on the game in question. E.g. there should be "Some_Game.x86" and/or "Some_Game.x86_64" executables alongside "Some_Game_Data" directory in case of Unity3D engine; "Some_Game.sh" and "game", "lib" and "renpy" directories script in case of Ren'Py, or there can be something entirely different for custom engines.

3b) After locating the executable you can open its directory in a console (AKA "Scary Black Window") and analyze the executable by typing

$ ldd -r ./Some_Game_Executable

This should list the required libraries and their actual location in the system. The missing ones will be in cursive and will lack the location. You can write down their names and use specialized Internet sites like pkgs.org in order to find out how exactly the package containing the missing library is called in your Linux distribution. After that it is only a matter of installing the libs and trying again.

Hope that helps. :)