As per https://bugs.winehq.org/show_bug.cgi?id=19888 I opened CONFIG.INI and set:

UseVideoTextures=0
NoMovies=1

To get the game to start properly. I found that setting "NoSort=1" helps a *lot* with the framerate (at the cost of introducing some graphical glitches with object pop-in), but not enough for it to be acceptable (at least to me) & no other settings I tried changing made much of a difference. For now it looks like all we can do is wait for further improvements to Wine.

Game: Etherlords 2
Installer MD5: 48d04fe530848c02baf5d3c2cec3fc79 setup_etherlords2_2.0.0.3.exe
WineHQ AppDB link: https://appdb.winehq.org/objectManager.php?sClass=application&iId=5178

Distro: Linux Mint 18 Cinnamon 64-bit
Kernel version: 4.4.0-38
Graphics card: Nvidia GeForce GTX 750Ti
Graphics driver & version: Proprietary 370.28
Wine version(s) tested: Wine Staging 1.9.19 via PlayOnLinux

Install notes: Install & play.
If using PlayOnLinux, start the game from/create shortcut for "Etherlords2.exe" (run "Config.exe" to configure display settings)
How well does it run: Perfect
Details: Played through the tutorials then started & played a new game for a while, all seems to work fine. Tested with virtual desktop enabled.

Game: Back to the Future: The Game
Installer MD5: 737d96b1f91ecf7a9facf3f873ac12d1 setup_back_to_the_future_2.1.0.5.exe
WineHQ AppDB link: https://appdb.winehq.org/objectManager.php?sClass=application&iId=12539
CodeWeavers link: https://www.codeweavers.com/compatibility/crossover/back-to-the-future

Distro: Linux Mint 18 Cinnamon 64-bit
Kernel version: 4.4.0-38
Graphics card: Nvidia GeForce GTX 750Ti
Graphics driver & version: Proprietary 370.28
Wine version(s) tested: Wine Staging 1.9.19 via PlayOnLinux, CrossOver 15.3.0

Install notes: Install & play (if using CrossOver then you need to install DirectX 9 Modern or there will be some rendering issues)
If using PlayOnLinux, start the game from/create shortcut for "Launcher.exe"
How well does it run: Perfect
Details: Started a game & played for a while (and briefly tested that the other episodes start up ok), seems to run perfectly. Tested with virtual desktop and CSMT enabled.

I can confirm that the patch also works for me. Fantastic! Scene 5 jump is doable now, and I can finally finish the game. The sky is also rendered properly. Thanks a lot for your effort!

One minor problem that I see however is that car animation in cutscenes doesn't work correctly (the cars literally jump around). I also observe the same issue with the patch from WineHQ that I mentioned before. I am not sure if this issue is specific to my computer, so it would be good to verify it independently. Also do you think the same patch can be used to fix nitro.exe from the Nitro Pack? From what I read it seems to have exactly the same bug in the code as i76.exe.

Game: Tales of Monkey Island
Installer MD5: 063aae082dbdb87399f33e891ab2b688 setup_tales_of_monkey_island_2.0.0.12.exe
WineHQ AppDB link: https://appdb.winehq.org/objectManager.php?sClass=application&iId=13938
CodeWeavers link: https://www.codeweavers.com/compatibility/crossover/tales-of-monkey-island-complete-pack

Distro: Linux Mint 18 Cinnamon 64-bit
Kernel version: 4.4.0-38
Graphics card: Nvidia GeForce GTX 750Ti
Graphics driver & version: Proprietary 370.28
Wine version(s) tested: Wine Staging 1.9.19 via PlayOnLinux, CrossOver 15.3.0

Install notes: Requires d3dx9 (install DirectX 9 Modern in CrossOver)
If using PlayOnLinux, run the game from/create shortcuts for "MonkeyIsland101.exe" to "MonkeyIsland105.exe" for episodes 1-5 respectively.
How well does it run: Almost perfect
Details: Started a game & played for a while (and briefly tested that the other episodes start up ok), seems to run perfectly except that when you quit the game PlayOnLinux complains that it crashed. Tested with virtual desktop and CSMT enabled.

Game: Heroes of Might and Magic 2 Gold (Windows version)
Installer MD5s:
b46390242ffd533bd8680eb2366b07bd setup_homm2_gold_win_2.0.0.7.exe
014edebaeeecfd7ff4ad7e7dc806f2ad patch_homm2_the_succession_wars_tracks_win.exe
WineHQ AppDB link: https://appdb.winehq.org/objectManager.php?sClass=application&iId=2402

Distro: Linux Mint 18 Cinnamon 64-bit
Kernel version: 4.4.0-38
Graphics card: Nvidia GeForce GTX 750Ti
Graphics driver & version: Proprietary 370.28
Wine version(s) tested: Wine Staging 1.9.19 via PlayOnLinux

Install notes: For music playback to work you need to install devenum and quartz (install DirectX 9 Modern in CrossOver) and add an override for winmm (native, builtin). You may also need to select CD music ingame.
If using PlayOnLinux, run the game from/create a shortcut for "HEROES2W.EXE".
Before playing, set set compatibility mode for Win95 or the game will crash a lot. Also run "Graphic Setup.exe" to set the display resolution - select windowed mode as any resolution changes don't seem to apply if running full screen.
How well does it run: Almost perfect
Details: I've only played for a short time so far but it seems to run perfectly for the most part; however as noted above resolution changes don't seem to apply when running the game full screen and it froze on exit once. The "main" version of this game uses the DOS version & it's probably better to use that in DOSBox for Linux instead.

Game: Heroes of Might and Magic 3 Complete
Installer MD5s:
263d58f8cc026dd861e9bbcadecba318 setup_homm3_complete_2.0.0.16.exe
815b9c097cd57d0e269beb4cc718dad3 patch_heroes_of_might_and_magic_3_complete_2.0.1.17.exe
WineHQ AppDB link: https://appdb.winehq.org/objectManager.php?sClass=application&iId=394
CodeWeavers link: https://www.codeweavers.com/compatibility/crossover/heroes-of-might-and-magic-iii

Distro: Linux Mint 18 Cinnamon 64-bit
Kernel version: 4.4.0-38
Graphics card: Nvidia GeForce GTX 750Ti
Graphics driver & version: Proprietary 370.28
Wine version(s) tested: Wine Staging 1.9.19 via PlayOnLinux, CrossOver 15.3.0

Install notes: Install & play.
If using PlayOnLinux, run the game from/create a shortcut for "Heroes3.exe"
How well does it run: Perfect
Details: Played through the tutorial & played a new game for a while, no sign of any problems. Tested with virtual desktop enabled.

Open source engine reimplementation "VCMI Project":
There is an open source engine reimplementation for HOMM3 that's playable natively on Linux - it's not yet feature complete but it does sound like it's quite playable (I haven't tested it myself yet). Find out more here: http://forum.vcmi.eu/portal.php

Game: Heroes Chronicles: All Chapters
Installer MD5s:
f584d6e11ed47d1d40e973a691adca5d setup_heroes_chronicles_chapter1_2.1.0.42.exe
0d240bc0309814ba251c2d9b557cf69f setup_heroes_chronicles_chapter2_2.1.0.43.exe
cb21751572960d47a259efc17b92c88c setup_heroes_chronicles_chapter3_2.1.0.41.exe
922291e16176cb4bd37ca88eb5f3a19e setup_heroes_chronicles_chapter4_2.1.0.42.exe
57b3ec588e627a2da30d3bc80ede5b1d setup_heroes_chronicles_chapter5_2.1.0.42.exe
64becfde1882eecd93fb02bf215eff11 setup_heroes_chronicles_chapter6_2.1.0.42.exe
07c189a731886b2d3891ac1c65581d40 setup_heroes_chronicles_chapter7_2.1.0.42.exe
2b3e4c366db0f7e3e8b15b0935aad528 setup_heroes_chronicles_chapter8_2.1.0.42.exe
WineHQ AppDB link: (there isn't a single link for the complete collection & not all of them have entries)
CodeWeavers link: https://www.codeweavers.com/compatibility/crossover/heroes-chronicles-all-chapters

Distro: Linux Mint 18 Cinnamon 64-bit
Kernel version: 4.4.0-38
Graphics card: Nvidia GeForce GTX 750Ti
Graphics driver & version: Proprietary 370.28
Wine version(s) tested: Wine Staging 1.9.19 via PlayOnLinux, CrossOver 15.3.0

Install notes: Install & play.
If using PlayOnLinux, run the games from/create shortcuts for:
Chapter 1 - Warlords of the Wasteland: "Warlords.exe"
Chapter 2 - Conquest of the Underworld: "Underworld.exe"
Chapter 3 - Masters of the Elements: "Elements.exe"
Chapter 4 - Clash of the Dragons: "Dragons.exe"
Chapter 5 - The World Tree: "WorldTree.exe"
Chapter 6 - The Fiery Moon: "FieryMoon.exe"
Chapter 7 - Revolt of the Beastmasters: "Beastmaster.exe"
Chapter 8 - The Sword of Frost: "Sword.exe"
How well does it run: Perfect
Details: Have only briefly tested each one (each in a separate prefix), but there's no sign of any problems. Tested with virtual desktop enabled.

Game: Heroes of Might and Magic 4 Complete
Installer MD5: 74de66eb408bb2916dd0227781ba96dc setup_homm4_complete_2.0.0.12.exe
WineHQ AppDB link: https://appdb.winehq.org/objectManager.php?sClass=application&iId=1229
CodeWeavers link: https://www.codeweavers.com/compatibility/crossover/heroes-of-might-and-magic-iv-complete

Distro: Linux Mint 18 Cinnamon 64-bit
Kernel version: 4.4.0-38
Graphics card: Nvidia GeForce GTX 750Ti
Graphics driver & version: Proprietary 370.28
Wine version(s) tested: Wine Staging 1.9.19 via PlayOnLinux, CrossOver 15.3.0

Install notes: Install & play.
If using PlayOnLinux, run the game from/create a shortcut for "heroes4.exe"
How well does it run: Perfect
Details: Played for a while (the tutorial + start of a new game), no sign of any problems. Tested with virtual desktop enabled.

Game: Hitman: Codename 47
Installer MD5: 018d8191bfa45c16995537e3a93f96bd setup_hitman_codename_47_b192_(17919).exe
WineHQ AppDB link: https://appdb.winehq.org/objectManager.php?sClass=application&iId=1011
CodeWeavers link: https://www.codeweavers.com/compatibility/crossover/hitman-codename-47

Distro: Linux Mint 18.3 Cinnamon 64-bit
Kernel version: 4.13.0-32
Graphics card: AMD RX 480 8GB
Graphics driver & version: Open source, with Mesa 17.3.2 from Padoka's stable Mesa PPA
Wine version(s) tested: Wine 3.0 (with CSMT and virtual desktop enabled)

Install notes: Requires directmusic (in CrossOver install "Direct Music")
Run the game from/create a shortcut for "hitman.exe"
Use the OpenGL renderer
How well does it run: Perfect
Details: Have played for a short time, seems to run perfectly as long as you use OpenGL mode.

Widescreen support:
For widescreen support (not proper widescreen support, unfortunately) follow the instructions as detailed here: [url=http://pcgamingwiki.com/wiki/Hitman:_Codename_47#Widescreen_resolution]http://pcgamingwiki.com/wiki/Hitman:_Codename_47#Widescreen_resolution[/url]

- Run the game once to select OpenGL renderer & set things up as you want
- Locate hitman.ini in the game's directory and open it in a text editor
- Change the resolution setting to match your desktop (or virtual desktop if enabled) and add these two lines at the end:

Window
StartUpperPos 0,0

Then save and exit.

There is another widescreen fix by nemesis2000 that should give proper widescreen support, but that requires the Direct3D renderer and doesn't work well in Wine. I was unable to get it working with Wine Staging 2.0; with Wine Staging 2.8 it worked but the game speed was extremely fast.

Wine wrapper
I have put together a Linux Wine wrapper for this game. For more information, see the release thread in the game's forum: https://www.gog.com/forum/hitman_series/hitman_series_for_linux

Any word on running Codename: Panzers Phase One/Two in WINE? Their AppDB entries are very old...

Game: Hitman 2: Silent Assassin
Installer MD5: a7e5d8d363db2150f30835ffe1fa0e92 setup_hitman2_2.0.0.13.exe
WineHQ AppDB link: https://appdb.winehq.org/objectManager.php?sClass=application&iId=1375
CodeWeavers link: https://www.codeweavers.com/compatibility/crossover/hitman-2-silent-assassin

Distro: Linux Mint 18.3 Cinnamon 64-bit
Kernel version: 4.13.0-32
Graphics card: AMD RX 480 8GB
Graphics driver & version: Open source, with Mesa 17.3.2 from Padoka's stable Mesa PPA
Wine version(s) tested: Wine 3.0 (with CSMT enabled)

Install notes: Install & play.
Run the game from/create a shortcut for "hitman2.exe"
How well does it run: Perfect
Details: Have played through the start of the game and first mission, seems to run flawlessly.

Widescreen support:
Some widescreen fixes are detailed here: [url=http://pcgamingwiki.com/wiki/Hitman_2:_Silent_Assassin#Widescreen_resolution]http://pcgamingwiki.com/wiki/Hitman_2:_Silent_Assassin#Widescreen_resolution[/url]

I've tested both of the Hor+ options & both appear to work, although I prefer & have been using nemesis2000's fix. Note that nemesis2000's fix will require you to restart the game after accessing the graphics menu as it'll crash when you try to play if you don't & the other fix will disable anti-aliasing. Whichever fix you use, if you're running the game with virtual desktop enabled, set the virtual desktop's resolution to the resolution you intend to use for the game.

To use nemesis2000's fix you'll also need to add an override for d3d8 (native, builtin).

Wine wrapper
I have put together a Linux Wine wrapper for this game. For more information, see the release thread in the game's forum: https://www.gog.com/forum/hitman_series/hitman_series_for_linux

Game: Hitman 3: Contracts
Installer MD5: ad6548816d583a308bf31906b5abe50c setup_hitman3_2.0.0.11.exe
WineHQ AppDB link: https://appdb.winehq.org/objectManager.php?sClass=application&iId=2606
CodeWeavers link: https://www.codeweavers.com/compatibility/crossover/hitman-contracts

Distro: Linux Mint 18.3 Cinnamon 64-bit
Kernel version: 4.13.0-32
Graphics card: AMD RX 480 8GB
Graphics driver & version: Open source, with Mesa 17.3.2 from Padoka's stable Mesa PPA
Wine version(s) tested: Wine 3.0 (with CSMT enabled)

Install notes: Install & play.
Run the game from/create a shortcut for "HitmanContracts.exe"
How well does it run: Perfect
Details: Played through the start of the game, all seems fine.

Widescreen support:
I used the widescreen fix by nemesis2000, which is available here: http://ps2wide.net/pc.html#h3
For it to work you'll need to add an override for d3d8 (native, builtin).

Wine wrapper
I have put together a Linux Wine wrapper for this game. For more information, see the release thread in the game's forum: https://www.gog.com/forum/hitman_series/hitman_series_for_linux

War Wind needs some love. Wine iccvid needs improvement, s'il vous plaît.