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Casual indie game Air Defender focuses on accessible play rather than a tagged niche. It released in 2025 from rotor3, with rotor3 also listed as publisher, and has 318 Steam reviews at 0% positive marked mixed. Initial price is $20.19.
Overview
Air Defender is a 2025 Casual game developed by ROTOR3 and published by ROTOR3. On Steam it has gathered 354 player reviews, 79% of them positive, which counts as a mostly positive reception among indie titles in the Casual category. The game is available on windows, and launched at $20. The pairing of developer ROTOR3 with publisher ROTOR3 is one of the studio-publisher relationships indielist tracks, letting players find comparable games and letting developers and investors study how Casual projects reach the market. indielist's white-box method estimates its lifetime sales at roughly 6,000 to 15,000 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, Air Defender can be compared against similar Casual titles and benchmarked on review counts and estimated sales.
Reviews
354
Positive
79%
Steam appid
3985030
Engine
Unknown
Players (snapshot)
Unavailable
Sales estimate
v1.06K to 15K
units (median: 11K)
≈ $73K to $171K modeled net revenue (fixed store-cut, refund, and regional-price assumptions applied)
+ - How is this calculated?
| Factor | Adjustment |
|---|---|
| base | +50 |
| year_2025 | -10 |
| price_$20 | +5 |
| positive_79% | 0 |
| genre_Casual | -15 |
| final NB | 30 |
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 Air Defender at roughly 6,000 to 15,000 copies, with a median around 11,000, derived from its 354 Steam reviews using a multi-factor Boxleiter method (version v1.0). That median maps to approximately $122K 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 $16.15Across 15 observed UTC days from 2026-07-15 to 2026-09-04, the daily lowest tracked USD price across stores ranged from $16.15 to $20.19. The tracked-window low was $16.15 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$20.19 Buy
- Green Man Gaming
- Fanatical
- Humble Store
- GOG.com
Latest tracked store observations (2026-09-04 05:44 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
Genres
CasualIndieSimulationStrategyEarly Access
Frequently asked questions
- How many copies has Air Defender sold?
- indielist estimates Air Defender has sold between 6,372 and 14,868 units (median 10,620), derived from its 354 Steam reviews with the white-box Boxleiter v1.0 method. The full breakdown is shown on the page.
- Who developed Air Defender?
- Air Defender was developed by ROTOR3 and published by ROTOR3.
- Who published Air Defender?
- Air Defender was published by ROTOR3, developed by ROTOR3. See ROTOR3's full catalogue and submission status on indielist.
- When was Air Defender released?
- Air Defender was released in 2025.
- How many reviews does Air Defender have on Steam?
- Air Defender has 354 Steam reviews, of which 79% are positive.
- Is Air Defender worth playing?
- Steam players rate Air Defender 79% positive across 354 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 Air Defender can compare it on indielist against semantically similar Casual titles such as Garry's Mod, Wallpaper Engine, Factorio, Balatro, ranked by shared tags and genre rather than by ad spend. On the developer side, ROTOR3's other releases and ROTOR3's wider catalog are one click away, letting developers benchmark where Air Defender 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 Air Defender page serves three audiences at once: players hunting their next Casual 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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