Crunchyrollstreamed the series as it aired in Japan.
Crunchyroll also streamed both the
Re:Zero ~Starting Break Time From Zero~ and
Re:PETIT ~Starting Life in Another World from PETIT~ short anime spinoff series.
Funimationreleased the television anime on home video with an English dub in June 2018.
The anime's second season was delayed from April 2020 to July 2020. The staff explained that "the global issues of the COVID-19 coronavirus illness have had a big effect on the production" of the show. The season's second half premiered on
AT-X on January 6.
Sources:
Re: Zero Kara Hajimeru Isekai Seikatsu: Kinsho to Nazo no Seirei game's website, Comic Natalie