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Under Domain

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About Under Domain

Under Domain is a turn-based strategy game in which you lead a Reptilian alien invasion of Earth. From the 1900s through 2020, you secretly influence human history, build a war fleet and prepare to attack at the right moment.

Influence human history

You have 10 movements per turn, with each movement representing one year of human existence; each turn therefore covers a decade. Use operations such as sabotage, hybrid agents, murder, mind control, abductions and virus contamination to interfere with human development. You can also launch orbital and surface probes to capture and influence significant events in human history, and replace key people with specialists who can undermine Earth's war power.

Your actions need to be accurate to avoid attracting human attention. Alien spaceship sightings can reveal your existence to human nations, giving them time to prepare for the invasion and making that phase more difficult.

Develop your forces

Find energy from pyramids and rare volcanic minerals to build war machines. Evolve your mothership to gain access to new resources and instruments, choosing among three pillars for each evolution decision: Science, Military or Infrastructure.

Search for, build and enhance spaceships, then spread them across Earth so they can rise from different locations when the invasion reaches the combat phase.

Plan the invasion

The game offers straightforward ways to plan and carry out the invasion, with strategic combinations of actions that can lead to different winning scenarios. Its rules are easy to learn, but mastering the available strategies takes more work.

Frequently asked questions

Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.

Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.

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