"This is the end of the story we have prepared."Challenge Mode is a post Story Mode where the player can play until day 99 without checkpoints, unlocking more departments and increasing the energy goal each day, and also bringing the chance of Random Events to happen. The player can unlock it after completing Story Mode, which will become available from the main screen by showing a button named 'Challenge Mode', and alternatively, the player can also proceed by clicking the 'Continue' button.
- Challenge Mode Message
When the player reach the end of the Story Mode, a message will appear telling to the player that is entering to the Challenge Mode, and if wanting to proceed or not. If the player continue to Challenge Mode, another checkpoint will be made, becoming the last one for the rest of this mode, conserving any agents, departments, researches and Abnormalities previously got in Story Mode.
The main differences of this mode are:
- The player can't get anymore checkpoints once starting.
- The first days, extra containment units will be unlocked until getting all the Abnormalities available.
- The energy required to end the day will increase each day, but without more new Abnormalities, making the days more longer to collect energy.
This mode focus in energy production only, and until there are more features, the Challenge Mode provides an 'Endless Mode' feeling, without getting much different features and the days must be performed perfectly to avoid a total game lost.
|ゲームメカニック||一日のサイクル - LOBポイント - 雇用 - ステータス - ダメージタイプ - 装備 - パニックレベル - ミッション - 研究 - 弾丸研究 - ウサギチーム - 試練 - セフィラコア抑制 - チャレンジモード|
|部門||コントロールチーム - 情報チーム - 安全チーム - 教育チーム - 中央本部チーム - 懲戒チーム - 福祉チーム - 記録チーム - 抽出チーム|
|キャラクター||X（プレイヤー） - A - B - アンジェラ - セフィラ - 職員|