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Demons' Timeline
Cyber Detective L solves Paradoxes—bizarre incidents by supernatural Demons—via the social media giant Parrotter. The Cyber Detective Squad, L and his Demon partner Nyasuteria, wield elite hacking and psychic powers to take on the final Paradox investigation.
What players say
Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-25.
“Only finished the first chapter and I know I have to recommend this game You play as a cyber detective solving a mysterious crime case through exploring Twitte- Parrotter accounts. Finding keywords, connecting main and sub accounts of people, deducting motives, and connecting…”
— a player, Steam review · 11 hrs played“Way better than I expected. Only gripe is that the chapter transition scenes are painful to look at”
— a player, Steam review · 5 hrs played“A delightful little mystery/deduction game with great flavor and an ending that really brings it all together in a fascinating, satisfying way. If you're someone who enjoys the mystery + pseudo-physics vibes of something like the Zero Escape series, Steins;Gate, Somnium Files,…”
— a player, Steam review · 8 hrs playedPlayer activity
Monthly average concurrent players. Live data self-collected from the Steam API · history through 2026-08 via SteamCharts.
Achievement stats
Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-26.
Price tracking
US-region pricing (USD), sampled twice daily by our own tracker since 2026-09-26. Steam prices vary by region — always confirm your local price on Steam.
Regional prices at last sample, in local currency — Steam sets each region's price independently.
Cheapest → most expensive, converted to USD at ECB reference rates (2026-09-25). Relative comparison only.
Latest official news
Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.
2026/08/25 Update
・簡体字版の誤字を２か所修正しました。 ・一部設問に複数の回答が想定できてしまったため、変更しました。 ・Fixed 2 typos in the Simplified Chinese version. ・Changed some questions because multiple answers were possible. ・修正了简体中文版中的两处错字。 ・由于部分设问可能存在多个答案，因
Demons' Timeline Now Supports Simplified Chinese + 25% Off!
Attention, Cyber Detectives! Demons' Timeline now officially supports Simplified Chinese! This update adds Simplified Chinese localization to all of the following content: Full Game Free Demo Digital
2026/06/16 Update
Ver1.7 英語で開始するボタンが無効化になっていたため修正しました！ The "Start in English" button was disabled, so I fixed it!
Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-09-25.
| Genres | Adventure, Indie |
| Player tags | Mystery · Text-Based · Story Rich · Adventure · Detective · Investigation · Visual Novel · Logic · Puzzle · Hand-drawn · Indie · 2D (Steam store community voting) |
| Features | Single-player · Steam Achievements · Camera Comfort · Custom Volume Controls · Mouse Only Option · #category_playable_at_your_own_pace · Playable without Timed Input · Save Anytime |
| Languages | English, Japanese, Simplified Chinese |
| Achievements | 20 |
Minimum system requirements (PC)
Minimum: Requires a 64-bit processor and operating system OS: Windows 10 / 11 (64-bit) Processor: Intel Core i3 2.0GHz Memory: 4 GB RAM Graphics: Intel HD Graphics 4000 DirectX: Version 11 Storage: 2 GB available space