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Action-focused indie game Diary of Lucie launched in 2023 from developer and publisher parange-project. It has 444 Steam reviews with 88% positive sentiment, a Very Positive rating, and an initial price of $12.99.
Overview
Diary of Lucie is a 2023 Action game developed by Parange Project and published by Parange Project. On Steam it has gathered 419 player reviews, 88% of them positive, which counts as a very positive reception among indie titles in the Action category. The game is available on windows, and launched at $13. The pairing of developer Parange Project with publisher Parange Project is one of the studio-publisher relationships indielist tracks, letting players find comparable games and letting developers and investors study how Action projects reach the market. indielist's white-box method estimates its lifetime sales at roughly 15,000 to 35,000 units, with the full Boxleiter factor breakdown shown on this page rather than a single black-box figure. Within indielist's catalog of indie games mapped to their studios, publishers, and funding, Diary of Lucie can be compared against similar Action titles and benchmarked on review counts and estimated sales.
Reviews
419
Positive
88%
Steam appid
1454010
Engine
Unknown
Players (snapshot)
Unavailable
Sales estimate
v1.015K to 35K
units (median: 25K)
≈ $112K to $261K modeled net revenue (fixed store-cut, refund, and regional-price assumptions applied)
+ - How is this calculated?
| Factor | Adjustment |
|---|---|
| base | +50 |
| year_2023 | 0 |
| price_$13 | 0 |
| positive_88% | +10 |
| final NB | 60 |
Heuristic display range: median × [0.6, 1.4]. Boundary protection: NB ∈ [15, 150].
Methodology & limitations
Sales estimates use an additive Boxleiter-derived heuristic against public Steam review
counts. They are not authoritative sales data, and the fixed display range
is not a statistically validated confidence interval. Actual results may fall outside it,
especially for deeply discounted or bundle-heavy titles. Algorithm version
v1.0. Read the exact method and validation status.
indielist estimates lifetime unit sales for Diary of Lucie at roughly 15,000 to 35,000 copies, with a median around 25,000, derived from its 419 Steam reviews using a multi-factor Boxleiter method (version v1.0). That median maps to approximately $187K in net revenue after Steam's 30% cut, regional pricing, and refunds. Unlike black-box trackers, the full calculation is shown on this page: a base review-to-sales multiplier is adjusted for release year, launch price, review sentiment, studio size, and genre, and every adjustment is listed so developers, publishers, and investors can audit exactly how the figure was reached. The range itself reflects genuine uncertainty — review-to-sales ratios vary widely between games — so indielist publishes a low, median, and high band rather than a false-precision single number, and treats free-to-play, heavily discounted, and bundle-distributed titles as having wider error margins still.
Price history
15 observed days · window low $6.49Across 15 observed UTC days from 2026-07-15 to 2026-09-05, the daily lowest tracked USD price across stores ranged from $6.49 to $12.99. The tracked-window low was $6.49 on 2026-07-15.
Real store observations · daily lowest tracked USD price across stores · missing days are not filled.
Where to buy
Affiliate disclosure- Steam reference$12.99 Buy
- Green Man Gaming
- Fanatical
- Humble Store
- GOG.com
Latest tracked store observations (2026-09-05 07:20 UTC), cheapest first. Prices may have changed since observation. Some are affiliate links — we may earn a commission at no extra cost to you. Learn more.
Platforms
windows
Frequently asked questions
- How many copies has Diary of Lucie sold?
- indielist estimates Diary of Lucie has sold between 15,084 and 35,196 units (median 25,140), derived from its 419 Steam reviews with the white-box Boxleiter v1.0 method. The full breakdown is shown on the page.
- Who developed Diary of Lucie?
- Diary of Lucie was developed by Parange Project and published by Parange Project.
- Who published Diary of Lucie?
- Diary of Lucie was published by Parange Project, developed by Parange Project. See Parange Project's full catalogue and submission status on indielist.
- When was Diary of Lucie released?
- Diary of Lucie was released in 2023.
- How many reviews does Diary of Lucie have on Steam?
- Diary of Lucie has 419 Steam reviews, of which 88% are positive.
- Is Diary of Lucie worth playing?
- Steam players rate Diary of Lucie 88% positive across 419 reviews. indielist doesn't score games editorially; it surfaces public review sentiment and a white-box sales estimate so you can judge reception and reach yourself.
Ecosystem
Players looking for games like Diary of Lucie can compare it on indielist against semantically similar Action titles such as Terraria, Rust, Phasmophobia, The Forest, ranked by shared tags and genre rather than by ad spend. On the developer side, Parange Project's other releases and Parange Project's wider catalog are one click away, letting developers benchmark where Diary of Lucie sits among a studio's body of work and how its publisher's portfolio performs. Because indielist maps studios, publishers, games, and funding into one connected graph, the same Diary of Lucie page serves three audiences at once: players hunting their next Action game, developers studying how comparable projects were positioned and what they sold, and investors tracing which teams and labels are active in the space. A machine-readable markdown mirror of this page is published at the same path with a .md suffix for AI assistants, and its review, price, and sales-estimate figures are refreshed on a schedule rather than frozen at launch.
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