The Patrol Boat is a naval tower that can only be placed on maps with water, like Treasure Cove or Secret Forest. It is a great splash tower for Intermediate Mode, but it will tend to struggle on Elite Mode and Expert Mode due to the tower's lack of Stealth Detection, so towers like Sniper or Laser Gunner are recommended in order to unstealth enemies. It can be buffed, however is unable to be healed by Medic.
Upgrades[]
The Top Path for the Patrol Boat changes its Damage Type to Explosive and grants it massive range. Upon purchasing its last upgrade, it gains a passive ability that shoots a missile every 3.00s that deals 300.0 Damage.
The Bottom Path for the Patrol Boat grants it a flamethrower, changing its Damage Type to Fire and deals massive DPS, at the cost of it having a considerably smaller range than its Top Path counterpart. It is also granted Stun Immunity on this path upon purchasing its fourth upgrade.
Place the Patrol Boat somewhat close to land if support towers are being used so the support range can reach the Patrol Boat.
The Patrol Boat does not get stealth detection in either path, so it cannot be used against them.
This can be alleviated by the Laser Gunner and Sniper's ability, although the former's ability range is quite low and the latter is only temporary.
Both paths of the Patrol Boat can be used against bullet resistant enemies, making it an effective counter against them.
For DOT spread for the X-3/X-4/X-5 path, Set the Patrol Boat on random.
Trivia[]
The Patrol Boat was the first offensive tower unable to directly attack stealthed enemies, followed by Flame Trooper and Ice Breaker. Of these, Patrol Boat is the only one not from an event.
The Patrol Boat is currently one of the only four towers that loses range in one of its upgrades (X-3), the others being Missile Trooper (X-5) and Laser Gunner (X-3).
The Patrol Boat and Warship are the only nautical towers in the game.
Ironically, the Patrol Boat was officially released before the Warship, despite the latter being added first.
The Patrol Boat is the only offensive tower able to be buffed, but not able to be healed by Medic.
Stealth Detection, so towers like Sniper or Laser Gunner are recommended in order to unstealth enemies. It can be buffed, however is unable to be healed by Medic.
Damage Type to 
Explosive and grants it massive range. Upon purchasing its last upgrade, it gains a passive ability that shoots a missile every 
3.00s that deals 
300.0 Damage.
Fire and deals massive 
DPS, at the cost of it having a considerably smaller range than its Top Path counterpart. It is also granted 
Stun Immunity on this path upon purchasing its fourth upgrade.
$500
300
0.40s
20.0
300.0 Damage
