Announcement
About demo version
Because of the restriction of Steam system, you can not download demo version on Steam after purchasing retail version. So demo version is also available on another website. Project ONe Demo version Click "ダウンロード"
Steam
Project ONe プロジェクト・ワン ～ハロルドはつらいよ～
Also known as Project ONe プロジェクト・ワン ～ハロルドはつらいよ～, po, project one
Old School RPG. Sorry, Japanese Language Only. It is an old school RPG. In RPG, it enters the genre called puzzle RPG.
Last update
31 May 2026
Players now
0
Original sources
1
Latest update
Latest updates
Update history
Browse past updates and patch notes for this game.
- May 2019
- 2019.5.23リリース予定日が2019.5.24から2019.5.23(JST)に変更になりました。 2019.5.23にはNintendo Switch「みんなの倉庫番」が発売されます。
- RTA Ready (Speedrun mode)This game has RTA(Speedrun) mode. For Speedrunners. https://steamcdn-a.akamaihd.net/steam/apps/256750426/movie480.webm
- Demo versionDemo version exists. If the demo does not run on your pc, the retail version may not run. So you should try demo before buying.
- Untitled
Gallery
In-game media
Achievements
Community progression
Top picks from 9 Steam achievements, sorted by player unlock rates.
- GAME RTA STARTGAME RTA START48.0%
- BAD ENDBAD END34.6%
- DLC GAME RTA STARTDLC GAME RTA START25.0%
- TAIKO SIMULATORTAIKO SIMULATOR21.1%
- DLC BAD ENDDLC BAD END19.2%
- NORMAL ENDNORMAL END19.2%