Ya can try "X-Com : Terror from the Deep" but I think it's kind hard to find since the X-Com series especiallt UFO defence & Terror from the Deep is considered classic now.
The X-Com saga are as follows :
1. X-Com : UFO Defense - in Europe IIRC it's called UFO Enemy Unknown
The initial saga.
2. X-Com : Terror from The Deep
The Saga continue with deep sea as battle stage
3. X-Com : UFO : Aftermath
This one slightly odd but I give it "Playable" rating
4. X-Com : Enforcer
Haven't play it - thanks to my ex-freaking Jap bosses!
Others...I have no idea. Hope that helps
