In 2024, the development team published the source code for the fighting part (without the castle) on GitHub – for the community improvement, prohibiting commercial use.

[2][3][4][5] Prime World combines PvP and PvE session battles in MOBA style with MMORPG-style persistent character progression.

The game uses a castle-building metaphor to display a player's development and a collectible card mechanic for character talents.

[6][7] Prime World's main game mode is "Borderlands", which is a classic MOBA map with three lanes guarded by turrets and two bases.

Nival has released four additional PvP game modes: "Dragonwald", with more PvE-oriented gameplay than Borderlands; the fast-paced "Outpost" with a single lane; defense-based "Homeland"; and the zombie-ridden "Apocalypse".

Each faction has one unique hero; Ha'ka and Da'ka belonging to Kingdom of Adornia and Dokht Imperium respectively, they share similar mechanics but have one ability that is different depending on which the player chooses.

[15] Prime World uses optional Facebook Connect to allow players to engage with their friends in the game, creating teams and using their help to improve production rates in their castle.