Is there a mod available that allows enemies to respawn randomly? Or atleast appear to respawn randomly.

Example...

If you kill all enemies along a stretch of road, then go back along it again before the set respawn time, you may still encounter new enemies.

Try Less Predictable Respawn and SPAWN - The latter should help achieve the effect and the former can be used to make the respawn mechanism even more dynamic.

here's a link: http://www.tesnexus.com/downloads/file.php?id=23366

I use this mod in all my games and like it very much.

SPAWN only works on interior cells though, or it did last time I had a look at it. I haven't seen an update for it in a long time though. There are some OBSE limitations that prevent it from working with exterior cells and last I read that couldn't be fixed.

Exterior cells won't ever be supported by SPAWN due to a technical limitation. As for an update, there has been one in the works ever since OBSE 18 Beta 1 got out. It's complete now and awaits the final release of v18. For a quick run down on the new features/ changes, take a look at the 2nd post in its discussion thread.

Thanks for the replies guys, but the problem with these mods is that they cause the cells to actually respawn. So harvestable plants etc are also respawned. I don't want that, I just want the enemies to respawn.

Is this possible?

I believe ANB once released a mod that did just that.