Here is the complete answer to your query:
(including all TV seasons, OVAs, and specials, but excluding movies and recap episodes). Breakdown by Season / Series: | Series Title | Episodes | Notes | |--------------|----------|-------| | Gintama (2006–2010) | 201 | Episodes 1–201 (first TV run) | | Gintama' (2011–2012) | 51 | Episodes 202–252 | | Gintama' Enchousen (2012–2013) | 13 | Episodes 253–265 | | Gintama° (2015–2016) | 51 | Episodes 266–316 | | Gintama. (2017) | 12 | Episodes 317–328 (Porori-hen / Slip Arc) | | Gintama. Porori-hen (2017) | 13 | Alternate listing for the above (total 25 in 2017? Clarified below ) | | Gintama. Shirogane no Tamashii-hen (2018) | 12 | Episodes 329–340 (Silver Soul Arc Part 1) | | Gintama. Shirogane no Tamashii-hen 2 (2018) | 14 | Episodes 341–354 (Silver Soul Arc Part 2) | how many episode does gintama have