Hi guys, im having a problem here, just've bought diablo + hellfire but when i double click the installer it just doesn't show anything, no messages or anything, someone know how to solve that? I use windows 7 btw

GOG installer start a little bit slowly. Dont forget run them as admin by Right Mouse Button. It take some second to appear Windows UAC message for admin rights. After that installer appear immediately.
That message usually appear on top, but sometimes not.

Just use DevilutionX, a community frequently updated version of the game, it should work on win 7 or newer without a hassle, official Diablo and Hellfire releases of the game haven't been updated for a long time. Find it at https://github.com/diasurgical/devilutionX/releases .

Youre all really start to be annoying. This is not first thread where some un-official NON Diablo suggested as solution to the thread where it be COMPLETELY unrelated to what OP ask.

Diablo 1 - at least GOG build - do not require anything "community updated". ESPECIALLY community updated - this is always be worse.

Oh sorry for annoying you, maybe it's time to crawl back to your hole? You are going to see mentions of devilutionx in every thread because this is how the game should be played. And the joke is on you, gog's version contains community made stuff

And it's 100% related to OP's question. We are offering a solution that works 100% of the time

Don't know what your problem is but that's a solution for a problem I also had. Haven't seen any official patch releases in the last 20 years. Yes and DevilutionX is directly related to the topic, as it is substitute for Diablo's and Hellfire's old executables that have all kinds of problems with modern PC.

Diablo is Diablo. Fan remakes is fan remakes. Learn what you suggest. Fan remakes is always new fixes + new bugs - that axiom. Open source = bugs existed in decade and become feature.

I can understand you having your own views of how the game should be played or experienced, and we all miss the 90's. Anyway, I'll stop this discussion here as the topic here is completely different.

Exactly. Subj of topic - about GOG installers. And newcomers to GOG. GOG installer take a few second to start. And a few more if it be multi-bin installer. Game actually not matter here.
And DevioultionX is NOT a Diablo AT ALL. This is remake. FAN made remake. That always have own features - and bugs. This shouldt be suggested as solution to something.

And GOG both versions (DX\normal one) is perfectly playing on current OS.

A remake wouldn't share any code with the original + the name is DevilutionX, yeah I know, a bit hard to get it correctly but I believe in you ;)

Yup. All you have to do is drag & drop diabdat.mpq into the folder or to %appdata%/diasurgical/devilution if you want to avoid ever having to copy/paste diabdat.mpq again for future devilutionx versions as they all read it from that place

Again. Exactly - this is differ code. Not improved. That what remakes was. Especially open-source. Differ ai for enemy\npc. And after about decade old bugs become features. Thats axiom as well, for any free remakes.

It still must-try. But that NOT a solution to problems with original game, because this IS NOT a original game.
Again, understand what "open-source" and "free remakes" means before suggesting it to everyone in every thread for every games. We are on GOG after all, for old games.
Usually ppl suggest new installments in the series. Just because it new and "improved". Suggesting remake just because it exist - same thing like suggesting new games. It optional and not must-have.

And now, back to topic
Ta-dam! He need to install Diablo first to copy-paste diabdat.mpq. You still say that your+NicolayPopov suggestion is not off-topic here? Exactly in this thread?

AI is the same, everything is the same except bugfixes. Unless you consider stuff like "monster hit chance/armor wrapping around in nightmare/hell so it's lower than it should be" A MUST HAVE VANILLA EXPERIENCE ... This is the original code, just polished and improved ... Love when people that have 0 clue are the loudest. Oh well.

"Ta-dam! He need to install Diablo first to copy-paste diabdat.mpq."
Not true again. You can copy diabdat.mpq straight from iso/cd/whatever or extract it from gog's installer.
Like what is your problem now? That we require the user to provide the file that contains all game assets and is kind of the only way to verify that the user owns the game? ...

Changing own words (about original code)? Bad excuses.
So you should suggest Inno Extract first, specific versions (to get diablodat.mpq) (bad excuse again). But why? OP just need few seconds. Or redownload installer (and check digital signature)(in that case inno extract do not help). Start it from admin (it affect temporary also for Windows Defender).

And only then - optionally - some mods\remakes.

Your "no-clue" what you suggest make you a bit fanatic. And that make you blind here, you miss what OP ask. Why it my problems, when it truth there is problems in you? It not first thread with this that i saw, not first when suggesting remake be completely irrelevant to topic. But i "argo" to this only now. So, whats my problem? I think it im should ask you.

Original code? It be open source previously? Nevermind. Even if game code released for free - remake - completely new code. It CHANGED old things, not improved. Improved is new features. And where is new features - there is new bugs. For open source bugs exist on decades and then become features (or functional deleted, even if it initially be in original game)(look at Warzone 2100 Resurrection - better example of broken pathfinding, units bugs (auto-repair turret), removed original controlling functions button from UI cause of more troubles, and that not mention 10 yo bugs - just more recent ones in versions 3.x.x)(as is saw something of that fixed-restored in 4.x.x).