About Tower Siege
Tower Siege is tower defense built out of blocks: you place pieces on the lanes, merge matching pairs into stronger tiers, and spend the coins enemies drop on more room.
The management layer — what to merge, what to sell, where to fortify — is what separates a held wall from rubble.
How to Play Tower Siege
Drag blocks and towers into place with the mouse on desktop or one finger on mobile.
Drop a matching piece on top of an existing one to merge them into the next tier up.
Position heavies where the lanes converge so one tower covers two approaches.
Collect coins from fallen enemies and spend them on extra slots before the difficulty climbs.
Hold every lane through the final siege wave to win.
Tips & Strategies
- Merge in the back. Combining pieces in the back rows keeps the front line manned while the merge completes.
- Fortify junctions. Double towers where lanes converge — overlapping coverage is worth more than a second tower on a straight stretch.
- Buy slots before the spike. Extra board room mid-game is worth more than one more weak tower, because room is what lets the next merge happen.
Frequently Asked Questions
When should I buy slots?
Before the mid-game difficulty spike. Buying room early compounds; buying it late just delays the collapse.
Is Tower Siege free?
Yes — free in your browser on PlayFennec, no signup or download.
How long is a siege?
Five to fifteen minutes, depending on how many waves the final stand lasts.
