Grid

The player has a pool of money, a base with cores to protect, and tower emplacements.

The goal is to strategically place towers to defend their base from incoming enemies.

Different kind of enemies require different kinds of towers to be able to destroy them.

The enemies consist of an alien species that is after your base.

These include small enemies and easy to kill enemies, slow and giant bosses, flying enemies, lightning quick enemies that require slowing down first, etc.

Towers consist of gun emplacements, flamethrower towers, anti-air towers, laser towers, and many more.

The enemies are after the power cores and pick these up after walking close to them.

Some enemies can carry several power cores at the same time and should be an priority.

When a power core is dropped, it slowly returns back to the power core, but can be picked up whilst returning by enemies.

The player loses when all cores are successfully stolen by enemies.

Unlike its predecessor, this game features coöperative and competitive multiplayer.

Grid for Xbox One is currently worth €34.21 loose, €10.55 complete in box, and €17.53 factory sealed. Prices are based on real sales and update regularly on Gamevaro.

Grid has a steady sales history on the tracked marketplaces, meaning it trades hands regularly and isn't considered particularly rare.

Loose means cartridge or disc only, CIB (complete in box) includes the original box and manual, and sealed means factory-sealed and never opened. For Grid, loose is €34.21 and CIB is €10.55 — CIB commands a premium because original boxes and manuals are fragile and often don't survive.

The PAL version of Grid is currently worth €34.21 loose, versus €15.51 for NTSC-U. Regional price differences usually come down to print run size and regional collector demand.