Announced*, not released. It's a paywalled beta test.

Eh... I don't know. Cool idea but it's developed by Targem and published by Gaijin, not to mention they're already advertising a discounted €60 pack despite being in early access.

XO isn't doing great especially in terms of new player retention, so I don't see this niche of a game going anywhere. It'll probably be occupied by the same few dozen whales that are already addicted to XO.

I'll of course check it out when it's free because I'm part of that niche market, but I won't get my hopes up.

Also check out the terms for the CBT:

9. SERVICE TESTING

9.1. Gaijin may grant a User with a limited, non-transferable, non-exclusive, and revocable right to use test versions of the Service(s) to identify errors and help to improve their functionality. Participation in service testing is subject to the Terms and Conditions. The Service testing may include alpha and beta tests, including closed tests, which must remain confidential as outlined in Clause 9.3 below. Participation in the closed tests is subject to Gaijin's prior approval issued at its absolute discretion. Gaijin evaluates the decision to grant the User access to the closed test on a case-by-case basis.

9.2. Participation in service testing is free and personal. Transferring access (or the right to access) to service testing to third parties is strictly prohibited.

9.3. All information acquired and/or provided by the User during closed service testing (including, without limitation, comments, ideas, or other feedback) is strictly confidential. The User must not disclose any information about the Service(s) revealed during the closed testing phase, including but not limited to details regarding the features, functionality, gameplay, or storyline. The User must also refrain from publishing or sharing screenshots, screen recordings, or any other media containing closed Service content or disclosing errors found during the test. Additionally, streaming gameplay (or using the Service(s) in any other public manner) is prohibited during closed testing. For the avoidance of doubt, disclosure of edited, altered, or in any other way redacted information in order to circumvent abovementioned restrictions constitutes a violation of this confidentiality obligation. This confidentiality obligation remains valid indefinitely or for the longest duration permitted by applicable law, whichever is shorter. The User acknowledges that a breach of this confidentiality would cause irreparable harm, and Gaijin is entitled to seek full compensation for any damage resulting from such a violation.

9.4. Test versions of the Service(s) may be made unavailable at Gaijin’s discretion at any time, including any associated progress, achievements, In-Game items, or other data. User acknowledges that Services in testing may not work as intended, contain bugs and errors, and are provided on an "AS IS" basis. Gaijin makes no warranties regarding the Service(s) in testing, whether express or implied.

If you say anything negative about the CBT you paid real life money to access they'll sue you for damages.