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Lost:Antinomy

Lost:Antinomy

With just a swipe to the left or right, you can make all kinds of decisions. So, please embark on your own unique adventure tale through the continent of Astra!

Released Mar 24, 2024 Developer IMaiIna Platforms Windows AdventureSimulationJRPGChoose Your Own AdventureRPG
View on Steam ↗ $2.99 (US · as of 2026-07-26)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Data as of 2026-05-20.

91.4%positive1,027 reviews
Recommended · 1 found this helpful

“后宫模拟器，非常好游戏。”

— a player, Steam review · 5 hrs played
Recommended · 0 found this helpful

“cheap, interesting, extendable, making it a great game”

— a player, Steam review · 4 hrs played
Read more reviews ↗

Player activity

Monthly average concurrent players. Live count fetched 2026-07-11 14:07 UTC · history via SteamCharts.

0playing at last check
294all-time peak
0 25 50 2025 2026 40 avg · Apr 2024

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-07-25.

53achievements
24.7%median completion
0.4%rarest: (後續更新)
97.0% of players 78.0% of players 50.3% of players 47.5% of players 43.0% of players 42.9% of players 42.1% of players 42.0% of players 39.3% of players 38.7% of players 35.1% of players 34.9% of players 33.8% of players 32.1% of players 31.0% of players 30.6% of players 29.7% of players 28.8% of players 27.8% of players 27.7% of players 27.6% of players 27.6% of players 27.3% of players 26.1% of players 25.7% of players 24.9% of players 24.7% of players 23.6% of players 23.4% of players 22.9% of players 22.7% of players 22.2% of players 19.4% of players 18.3% of players 17.8% of players 16.6% of players 16.1% of players 16.1% of players 15.7% of players 14.0% of players 13.5% of players 12.9% of players 12.9% of players 12.8% of players 12.8% of players 11.5% of players 10.2% of players 9.9% of players 9.4% of players 8.2% of players 5.5% of players 0.5% of players 0.4% of players 97.0% 0% most earned rarest
Almost everyone has
97.0%歡迎來到亞斯特 — 開啟遊戲
78.0%這就是...結局? — 解鎖任意結局
50.3%純愛戰神 — 觸發任一角色的純愛結局
Rarest badges of honor
0.4%(後續更新) — (後續更新)
0.5%于是，世界继续向前 — 触发更新结局「于是，世界继续向前」
5.5%勇者的戰場(笑) — 和暗殺者小隊的成員們在大教堂的圖書館...

Price tracking

US-region pricing (USD), sampled twice daily by our own tracker since 2026-07-11. Steam prices vary by region — always confirm your local price on Steam.

$2.99current · sampled 2026-07-26 08:39 UTC
$2.99lowest since tracking began2026-07-11
US2.99 USD
EU2.99 EUR
UK2.49 GBP
Australia4.50 AUD
Canada3.89 CAD
Japan350 JPY
Brazil11.59 BRL
China15.00 CNY

Regional prices at last sample, in local currency — Steam sets each region's price independently.

Japan≈$2.1 China Brazil Canada US Australia UK EU≈$3.4

Cheapest → most expensive, converted to USD at ECB reference rates (2026-07-24). Relative comparison only.

$0 $2.5 $5 07-11 07-14 07-17 07-20 07-23 07-26

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Jan 28, 2026
「终将重逢的小步舞曲」剧本更新

「将圣剑插入正位」 「与恋人在圣座上相拥」 「这是什么仪式？」你疑惑地问 「这是让她们降临的仪式，老师」薇塔爱妲的表情依旧难以捉摸 只是这次，多了几分慈爱的笑容，就象她那「大地母神」的称号一样 迷走：二律背反剧本现已更新 「终将重逢的小步舞曲」

Oct 26, 2024
全新剧本「十色无光的奏曲」现已上线!

快去试试吧!新剧本来啰!

Oct 20, 2024
主线更新!!!「奸邪的宣教师 米夏」主线剧情更新即将上线啰!

大家总是吐槽主线的米夏立绘呢... 所以...我在这次的更新中...为米夏重绘了全新的立绘! 同时，本次更新不会增加新剧本，而是对已经存在的主线剧本重构一次! 还请大家忘了旧米夏...让我们一起在本月见见新的米夏吧! 「奸邪的宣教师 米夏」 畏惧疼痛，却又渴望疼痛 想被关注，却又害怕被注视 祈求着爱，却又只能以伤害挚爱的方式来证明自己的「爱」 杂糅着矛盾的，罪恶的宣教师啊 这一次，穿越被无尽迷雾阻

Jul 20, 2024
夏天來了! 后日谈剧本#5《炙而如饥的轮旋曲》现已正式更新!

新作现正开发中! 喜欢《迷走:二律背反》吗?快把亚斯特大陆最新作加入愿望清单吧! https://store.steampowered.com/app/2262820/_/ B站投票夏日剧本 全新番外剧本《炙而如饥的轮旋曲(??)》已经更新啰! 建议先通关全后宫、暗杀者后宫中的其中一个噢! (本次更新没有新增成就)

Jun 03, 2024
追加選項急停

嗨嗨!本次更新追加了玩家一致要求的選項急停!

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From our knowledge graph — ranked by shared traits, not a black box. Each card says why it's here.

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Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-05-20.

GenresAdventure, RPG, Simulation
Player tagsAdventure · Simulation · JRPG · Choose Your Own Adventure · RPG · Interactive Fiction · Dating Sim · Strategy RPG · Word Game · Rogue-lite · 2D · Anime (SteamSpy community voting)
FeaturesSingle-player · Steam Achievements · Steam Workshop · Family Sharing
LanguagesSimplified Chinese, Traditional Chinese
Achievements53
Estimated owners50,000 – 100,000 (SteamSpy)
Minimum system requirements (PC)

Minimum: OS: Windows 10, 11 Processor: Intel Core i3 3.0 GHz Memory: 1 GB RAM Graphics: NVIDIA GeForce GTX 760 / AMD Radeon R9 280X Storage: 500 MB available space