For those not in the know,Hi Rez released the entire Earthsiege\Tribes games as freeware not so long ago(link here)
But I'm having some difficulty installing them since they didn't optimized them to run on modern systems(and that's why you should vote for them and try to contact Hi Rez to see if they'll sign up for GOG) so if anyone could help me install and play the games without trouble,I'll be very pleased.

It's just an iso file emulating the original cd. Get a program like Daemon Tools to read it, after that it's the same as installing from a cd.

It is possible the Windows installers don't work in 64bit Windows, though.

Could be, and I considered I might very well be telling him something he already knows, but better to make sure his problem isn't with the iso format first before delving deeper.

I tried mounting it the iso files(since Win10 already has a mount feature) but the installer doesn't appear and when it does,it crashes before I do anything.
Maybe it's because of my OS...

timppu was right. It`s a matter of it being a DOS game that you are trying to run in a modern OS. I got it running though, you just need to install DOSBox to emulate the old OS. From there it`s the same as installing a game in regular DOS, if you've done it before then you shouldn't have a problem. If you don't know how to install DOS games I can guide you through how I did it.

Will this work for Eathsiege 2 and Starsiege?
And could you guide through? I'm not that well versed in DOS.

I don't think those are DOS games so you shouldn't need DOSBox to run them. I did come across a video on how to install Earthsiege 2 in Windows XP while trying to get the first one to work, but I didn't watch it. You might want to check that one on Youtube to help you out.

Will do but one thing before I install those games,how well they hold up?

Haha sorry dude. Never played them, even now just checked to see if I could get the game running, didn't go so far as to play a mission.

ANyway,could you lecture me on how to nstall the first game?

Download and install DOSBox. Mount the first ISO image, ie with DaemonTools or the OS. Create a folder for the game, in Windows a suitable place would be C:\OLDGAMES\Earthsiege. Mount said folder in DOSBox. Mount the mounted ISO image in DOSBox as D:

The DOSBox manual supplies exact syntax.

1. Well, first you have to mount the directory where you intend to install the game, for example type:

mount c c:\games

If you want to install it somewhere else just type in a different directory, but the process is the same

2. Next mount your CD drive, if it`s D: then type:

mount d d:\ -t cdrom -ioctl

if it`s E: or F: just type that instead.

3. To move to the CD drive and start actually messing with the files there type:

d:

4. Type:

install

now you`re gonna go through a regular installation and the game will tell you what to do. At the end of it it will tell you to type es to play the game.

------ Subsequent boot ups:

1. You`ll still have to mount the drive where the game is at, but you can go directly to where it`s located, so whenever you open DOSBox and want to play this game just type:

mount c c:\games\sierra\mtech

2. Then, take control of that directory

c:

3. To play just type:

es


------- Useful information

I know this looks very complicated, but after you do it the first time you`ll se it`s easier than it looks. It`s just a really long post because I enumerated every keystroke.

You can look at all the files and folders in a directory by typing dir, and you can move around the folders by using the command cd. So for example, instead of doing it the way I said above you could instead just type mount c c:\, then type c: to move to that directory, then type cd games, to go into the games folder, cd sierra, to go into that, cd mtech to go there, and then type es to play. They are just different paths to the same result.

The link you posted only has a DOSBox version of Earthsiege. But it's a good link to have to look for plenty of good games.