Stargus
Here is the How-To for installing the incomplete Stargus Starcraft engine on your N900. This is not the full Starcraft game. See the project page linked below for details.
To install this you need to have rootsh installed. If you don't have it yet please install it through the Program Manager (with maemo extras enabled). Also you need to have a memory card inserted in the N900.
First you need to get the files from the original Starcraft CD with Stargus: Stargus Project page
Download Stargus
Put your Starcraft CD in.
Install Stargus and when you're asked for select the CD-Rom drive. When finished exit Stargus and go to the directory, where Stargus was installed (C:\\Program Files\Stargus)
Copy the CONTENT of the Data directory to your memory card to memorycard:\\games\stratagus\
Next you have to download this file: Stratagus deb file
Copy this file to the root directory of your memory card.
Open X-Terminal on the N900 and type in the following:
root cd /media/mmc1/ dpkg -i stratagus-0.1-4_armel.deb
Now it gets installed and you're ready! When you see this code while installing Stratagus:
Setting up stratagus (0.1.4) ... /var/lib/dpkg/info/stratagus.postinst: line 7: maemo-select-menu-location: not found
It doesn't mean anything serious. That was the category selection menu in maemo 2008 (diablo). In maemo 5 we don't have this selection menu but it doesn't matter, the game installed fine. If you already have Warcraft 2 installed, you first have to rename your Warcraft 2 games directory on your memory card. Have fun!
Credit goes to linman who has ported Stratagus for maemo and the Stargus team.