20th Century Summer Vacation -nsp--as...: Natsu-mon

We do not condone piracy. Dumping your own Switch cartridge to an NSP is legal in many jurisdictions for backup purposes. Downloading NSPs from public trackers is copyright infringement. The game is also available officially on Steam (as of October 2023) for $39.99.

Natsu-Mon: 20th Century Summer Vacation is a spiritual successor to the beloved Boku no Natsuyasumi (My Summer Vacation) series, which never saw official Western releases until now. You play as a young boy (default name: Satoru) spending his summer in the rural town of Yomugi, helping a local circus family, catching insects, fishing, swimming, and exploring every hill and riverside. There is no combat, no fail states, and no time limits—just pure, immersive nostalgia for a 20th-century Japanese childhood.

1. Snapshot Missions (not just selfies)
The protagonist’s grandfather (a retired photographer) asks the player to document "the real summer of 1999." Natsu-Mon 20th Century Summer Vacation -NSP--As...

2. Album Pages & NPC Reactions
After taking photos, you develop them at the local camera shop (costs a small amount of summer allowance or firefly jars).

3. Gameplay Rewards (Not just cosmetic)
Filling the album unlocks tangible benefits: We do not condone piracy

4. Tangible Nostalgia UI

Platform: Nintendo Switch (also PC, PS4)
Developer: Millennium Kitchen (creators of Boku no Natsuyasumi series)
Publisher: Spike Chunsoft
Release Date: July 2021 (JP), August 2023 (WW)
Genre: Adventure / Life Simulation / Open-World Relaxation Platform: Nintendo Switch (also PC

In the sprawling landscape of modern gaming, where open-world shooters and hyper-competitive battle royales dominate the charts, a quiet breeze has blown in from Japan. Natsu-Mon: 20th Century Summer Vacation (known in full as Natsu-Mon! 20th Century Summer Vacation) is not just a game; it is a time machine. For players who have downloaded the NSP version on Nintendo Switch or are considering diving into this pastoral gem, you are about to experience the spiritual successor to the legendary Boku no Natsuyasumi (My Summer Vacation) series.

Released initially in 2021 in Japan and later localized for Western audiences, this title asks a simple question: What if your only goal for an entire month was to be a child again?