Is One Troll Army co-op?

One Troll Army does not list co-op on Steam; it has Online multiplayer, Single-player too.

Does One Troll Army have PvP?

Steam does not list PvP for One Troll Army.

Do we both need to own One Troll Army to play together?

Yes. One Troll Army is played online, so each player needs their own copy on their own Steam account (or PC Game Pass where it is offered). Steam Families can share a library, but two people cannot play the same shared game at the same time.

How many people play One Troll Army?

About 3 players were in-game when this page's data was last refreshed (2026-09-09).

Ready Up — what game do we play?Compare two Steam libraries →

Multiplayer games › Strategy › Tower defense

Is One Troll Army multiplayer or co-op?

Yes — online multiplayer. One Troll Army is a tower defense game released in 2016, 86% positive on Steam (1,461 reviews), with 3 playing right now. Free on Steam.

Online multiplayerSingle-player tooStrategy · Tower defense

Play as a giant troll in One Troll Army - a defense game about building forts, upgrading your troll, and fighting off waves of enemies. Play Against The Twitch…

How One Troll Army plays with friends, according to Steam

Online co-op: Not listed on Steam
Local / split-screen co-op: Not listed on Steam
Online PvP: Not listed on Steam
LAN play: Not listed on Steam
Single-player mode: Yes
Controller: Partial controller support

Steam's own category list for the game, as of 2026-09-09. "Not listed" means the store page does not claim that mode; community mods or Remote Play can still add it.

Steam tags: Strategy, Free to Play, Tower Defense, Indie, Casual, Multiplayer, Fantasy, Action

Do you and a friend both own One Troll Army?

Ready Up compares two Steam libraries and shows every multiplayer game you both have — including whether One Troll Army is one of them — then helps you pick tonight's game with a weighted roll or a bracket.

Or open the Steam store page.

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Orcs Must Die! 3

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Tired of One Troll Army? The Swap tab finds the closest unowned games of the same type that are newer or rated higher.

Quick answers

Is One Troll Army co-op?: One Troll Army does not list co-op on Steam; it has Online multiplayer, Single-player too.
Does One Troll Army have PvP?: Steam does not list PvP for One Troll Army.
Do we both need to own One Troll Army to play together?: Yes. One Troll Army is played online, so each player needs their own copy on their own Steam account (or PC Game Pass where it is offered). Steam Families can share a library, but two people cannot play the same shared game at the same time.
How many people play One Troll Army?: About 3 players were in-game when this page's data was last refreshed (2026-09-09).

Ready Up is a free tool: enter two Steam usernames and it lists the multiplayer games you both own, runs a bracket to pick one, and suggests new co-op games that fit how you both play. Ratings, tags and player counts from Steam and SteamSpy; page updated 2026-09-23. Powered by Steam — not affiliated with or endorsed by Valve Corporation or Microsoft. Ready Up is a Somebody Decide program. How the data works · Legal & privacy · All types · Game Pass