How can I confine (e.g. in level design) the actors in outer space?

I want my actors in outer space but I don't want them roaming around freely.

Like, if the actors were in a building, there would be walls, doors, elevators. If they were on a land, there would be ridges, water, cliffs.

In my world, an attacker from another dimension, one where the 3'rd dimension does not exist, is terra-forming (or should I say astro-forming) our 3D universe to sustain their 2D life form because their universe is expiring. Our actors fight these attackers where they pop out and the universe is kinda 2D - so, that's one sort of confinement.

I tried thinking about asteroid belts - lots of rock around to form paths and boundaries.

Any other ideas?

Thanks

posted over 9 years ago

DraxDomax‭

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