This article is a stub.
You can help Bloons Wiki by expanding it.
Selling is a game mechanic first introduced in the original Bloons TD. It involves the removal of towers while returning back a percentage of the money spent on placement and upgrades. In Bloons Monkey City and Bloons Adventure Time TD, selling also returns the sold tower back to the towers menu for use again.
In games before Bloons TD 6, this sellback percentage is 75%, except in Bloons TD Battles Flash where it is 70%. In Bloons TD 6, default sellback is 70%, and +5% with "Better Sell Deals" MK and +10% with each Favored Trades for up to 95% sellback percentage. In Bloons Adventure Time TD, the default sellback is 70%.
In Bloons TD 6, attempting to sell towers in a game where selling is disabled (e.g. Daily Challenges/Custom Challenges with No Selling enabled or CHIMPS mode) via the secret in Flooded Valley or moving an Arctic Wind using a Support Chinook to cause non-water towers to "fall" into water will return $0 per sold tower. CHIMPS will also return $0 for any sold towers even if selling is forcibly enabled in the Challenge Editor. However, Sentry Champion's Champion Sentries can still be sold in CHIMPS. Selling towers while Lych is active will heal it by 1% (2% if Elite) of the total health per tower sold.