The information shown on Territorial.io is unlike anything else available online. It avoids explicit violence in favor of an abstract tactical approach.
The ultimate objective is to broaden one's horizons by venturing into uncharted regions, launching attacks on enemy territory, and finding uncharted islands and continents. There are a number of things to think about before deciding to extend your colony.
Pick a play style that appeals to you, raise your income and pay your taxes, and your land's interest rate will rise. With the last triumph, you will get half of your area.
Conquering uninhabited regions and repelling enemy incursions requires a large and growing army. Always think about your population and the enemy population before launching an assault.