Ah, I misread you. I thought you meant they were each $16 individually, so $48 added together. Unfortunately, I can’t answer you about the deluxe version.
In each game, you start by creating your own Unique character and then are dropped into the story. Generally, you’ll be able to move around in an area and click on things of interest. Battles occur when you reach certain story points or click on the right thing (like some thugs that want to start a fight). Areas can be as small as a room or can be a couple city blocks, but from what I remember there isn’t anything enormous and you’re not going to be able to wander around some grand map freely; this is an RPG that directs you through a story with the occasional chance to explore a little and pick up some side quests.
As for combat, you get to move and/or take an action, much like you would see in games like X-Com. Cover does play a role as many characters have ranged attacks. After you’ve ordered all your characters, the enemies get to make their moves, then back to you. I don’t think X-Com is a terrible comparison, though there is a little more RPG and a little less tactics in Shadowrun.