This will be the third time that the Japanese side will host InCAST." Titled "InCAST Japan21," it will be held at the Uptown Koenji Gallery in Koenji, Tokyo.
- Period: November 13 - 21, 2021
- Venue: Uptown Koenji Gallery, Tokyo
| Title of work | Creator | Format |
| Masahiko Hoshino | Glass Works, Glass photos | |
| trace your skin Ⅱ (仮) | Miki Furukawa | Installation |
| What Tea Party(仮称) | Daisuke Nakade | Installation |
| FRACTAL PARALLEL WORLD MANDALA | Kohji Asakawa | Video |
| Doma at Seafloor | ulrika.eller | Video |
| a certain point of view | Masamichi Shibasaki | Video |
| Dance （舞踏） | Yasuyuki Saegusa | print＋YouTube |
| Notification | Ryota Batoh | Video |
| "時間の世界の情景" | Zenichiro Kono | |
| Becoming Artronauts (2021) | Art Clay | Video |
| 演奏の花-展示説明動画 | Yuri Matumoto | Video |
| Into the light space | Mirosława Jarmołowicz | Mirosława Jarmołowicz |
| Art and Logos | Andreas Guskos | Video |
| Prometheus | Arkadiusz Marcinkowski | Video |
| Absence | Zbigniew Szot | Video |
| Zbigniew Bajek | Video | |
| Water | Zdzisław Wiatr | Video or print |
| Works | Andrzej Banachowicz | Video |
| Works | Grzeorz Chojnacki | Prints |
| Parallel Moment | Marek Sebiński | Video |
| angels never die | Robert Jundo | digital print on titanium metal |
| Fish | Bogusława Koszałka | Video |
| Untitled | Grzegorz Nowicki | |
| Between | Karolina Kaleta | Video |
| Late | Weronika Zieziulewicz | Video |
| Burned Forest | Jakub Palka | Video |
| Martyna Miłowska | Video | |
| ACID PERCEPTION | Dominika Zawojska-Kuriata andIrek Kuriata | Video |
| Singularity | Tomasz Wendland | Video |