Dino D-day is a great game. Unfortunately, the population is far too low and saturated with cheating. You might say "Oh, just go to a different server," but let me repeat: THE POPULATION IS FAR TOO LOW AND SATURATED WITH CHEATING.
As in, at any given time, there is about ONE SERVER with a good amount of people on it, and on that server there is bound to be 2-3 cheaters on it. You simply CANNOT ESCAPE. If you leave the server, they are bound to follow if they want to annoy you because you are easy to track when only two servers have anyone on it.
Until Steam Vac gets rid of these cheaters and the developers fix their DLC, I can't recommend this game anymore. I suspect the cheating is the major reason why the population has not been able to grow.
You can still play with bots, but I doubt it's worth the price if all you are playing against is bots. There is NO campaign, and all the maps and gametypes are the same for bots and players alike.
In short: Fun game ruined by cheaters.