"Incendiary bolt launcher. Starts fires."
The incendiary launcher is a moderately-heavy, single-shot weapon with medium effective damage per shot, very long time between shots, moderate range, and moderate effective accuracy. It is currently the only weapon with explosive projectiles that doesn't have a forced miss radius. Its incendiary projectiles will ignite anything it hits, this is particularly effective for disabling tough raiders, and also for destroying insect hives during infestations. Due to its real accuracy, raiders can become very problematic if not dealt with quickly since your colonists will helplessly run out into the open to vulnerable situations and then even burn to death if not rescued quickly enough.
The incendiary launcher's accuracy is considered effective due to the fact that its explosion burns the tile it lands on and all adjacent tiles, making up to a 50% chance of hitting the target so long as they aren't moving and are not behind walls. As it's hard to miss shots against immobile targets, any shooter will generally fare well, making it a very skill-friendly weapon. Prioritise equipping trigger-happy colonists with it to halve its lengthy warmup time.
Dealt damage while initially low 10 hit points, turns out to 16 on average as targets will take damage twice from the fire before extinguishing themselves.
Incendiary launchers can be manufactured at the machining table after researching machining, with 75 steel, 4 components and 22,000 (366.67 secs) of work. Scavenged from downed invaders. And purchased from outlander combat suppliers and towns, or from an orbital weapons trader.
The incendiary launcher is a dangerous weapon that's not to be underestimated. Capable of widespread destruction in dry climates. Enemies armed with it should be dealt with carefully. As well as being tactical with the use of them yourself.
The incendiary launcher is significantly more accurate and long-ranged than molotov cocktails, but less effective than the high-end doomsday rocket launcher as it is only a single-use weapon. It is most effective in the mid-game to late game; as your stock of charge rifles (or any other high-tier ranged weapons) increases, but it still remains a very good weapon when paired with bionic colonist when dealing with insect hives.
The following graphs take the incendiary launcher's effective damage and accuracy into account, using a Normal quality weapon fired from a healthy shooter against a single target.