Siege

Siege is a free-to-play competitive card game set in a medieval world of stone walls, cavalry charges, and hidden traps. Unlike most card games, both players act at the same time — no waiting, no downtime, just constant tactical pressure from start to finish.Destroy Their Walls. Defend Your Own.
The objective is simple: destroy 3 of your opponent's walls before they destroy yours. Every wall that falls removes an entire column from that side of the battlefield — the board shrinks, space tightens, and the tension builds with every turn.Simultaneous Placement
Every turn follows five phases:
Main Phase — Choose a resource (Gold or Wood) to improve for future turns

Placement Phase — Secretly spend resources to place cards on the battlefield

Move Phase — Units advance toward the enemy based on their type

Battle Phase — Cards in range deal damage and fight to the death

End Phase — Status effects tick, walls take damage, destruction is applied
Both players reveal their placements at the same time. Reading your opponent, predicting their moves, and adapting mid-battle is the skill that separates good players from great ones.Six Unit Types
Brawlers — durable melee fighters that hold the front line

Archers — ranged units that target back-row cards before they can act

Cavalry — fast movers that pressure walls early

Supports — utility cards with powerful abilities: heal, boost resources, draw cards

Traps — placed secretly, triggered when the enemy steps in

Spies — placed on the enemy half of the board, disrupting plans from behind
Deep Ability System
Cards carry activated and passive abilities that fire on placement, during combat, or at end of phase. Over 25 distinct ability types:
Fortify a column to protect a wall from damage

Poison enemy units with traps they never saw coming

Silence a support before it buffs the entire enemy row

Sabotage your opponent's resources mid-game

Scout the enemy hand before the placement phase begins
Four Pre-Built Decks — Jump In Immediately
Defense Bastion — walls of archers and layered traps designed to outlast any aggression

Aggro Assault — cavalry and brawlers that rush walls before the opponent can set up

Support Engine — resource acceleration and card draw that outvalue opponents in long games

Trap Ambush — hidden traps and sabotage that punish predictable play
Build Your Own Deck
Use the full Deck Editor to craft your own 40-card strategy from the complete card catalog. Experiment with unit combinations, ability synergies, and resource curves — then take it online.Play Online or vs AI
Online multiplayer — challenge players worldwide via lobby matchmaking

AI opponent — three difficulty levels (Easy, Medium, Hard)

Pause menu — audio controls and forfeit available mid-match
100% Free
Siege is completely free to play. All cards, all decks, all game modes — available to every player at no cost.