Disclosure: This game copy was bought by the reviewer.
The story can be completed in about 5 hours and involves linear crafting in terms of the mobile base and wait times for some of the higher level upgrades. You will gather minerals, upgrade to the next level, then destroy three stations to shut down one of the four identical compounds inside the volcano. You have one weapon, turrets to defend your base, and identical enemies to shoot at with slight defense/damage outputs. This is a very basic game with no replay value and very linear progression. Visually the aesthetic is great, the experience is complete with a suitable back story, and the performance runs steadily at an okay frame rate (averaged 40-42). It just really needs more varied content to stand up to the current price tag. Hold off for now.