No-one's answered what it says above
"Install Failed". Or does it say nothing at all?
Have you expanded the partition on your SD card? As Dave mentioned, OpenArena is quite large and if you haven't done this, you won't manage it. You can expand the partition by typing 'sudo raspi-config' into a terminal and then selecting 'expand_rootfs'. If you don't do this, Raspbian will only be trying to use about 2GB of your SD card and not the whole thing.
If you've already done this and you're still having problems, it may well be that you've reached the limits of your SD card, as Dave has described. As I said, if someone can tell me what it says above
"Install Failed", then we can probably resolve the problem much more quickly.
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