Sources & image credits
Check the developer references behind the game facts and the origin of the editorial screenshots.
Reference register
Source index refreshed September 23, 2026. Each guide retains its own source-review date. The official listing checked today still ends at the 1.02 addendum. Historical 0.60 grading and 0.63 Workbench announcements were reread for new grading and selling guides; those mechanics are not presented as newly released today. Earlier performance and achievement references retain their original checks. An observation date does not establish a patch release date. Official descriptions establish facts; the operating routines and example calculations on this site are our own explanatory material. The August rules article predates 1.0, whose patch notes mention changed card stats and effect text.
OPNeon Games — Early access build 0.60: Card Grading
Historical developer announcement, reopened September 23, 2026. Documents the phone app, up to eight cards per package, service-dependent cost/time, the Graded album and grade-specific price graph. It does not list a fee table, grade probabilities or a guaranteed resale result. Grading was not newly introduced in September 2026.
Source publication / observation date: 2025-08-23. See the note above for its meaning.
OPNeon Games — Early access build 0.63: Workbench changes
Historical 0.63 announcement reread September 23, 2026, not a new patch today. Raises the Workbench maximum price setting from 5 to 20, adds keyboard/gamepad entry and UG Bulk Box, and changes restocking selection. That Workbench setting is not a maximum sale price for a rare individual card or a grading fee.
Source publication / observation date: 2026-09-23. See the note above for its meaning.
OPNeon Games — 1.0 and the graded-card opening changes in 1.01
Launch announcement and official listing checked September 23, 2026. The visible addenda still end at 1.02. Build 1.01 adds right-mouse skipping of the graded-card opening sequence and holding all returned graded cards afterward. It does not promise that every high-value card will sell. Review date is not an addendum release date.
Source publication / observation date: 2026-09-23. See the note above for its meaning.
OPNeon Games — 1.0 optimization notes and post-launch addenda
Source reviewed September 19 in a live browser; the parent article is dated September 14. Lists model/texture optimization and reduced memory usage. The visible addenda run through 1.02, without independent dates. No newer developer build was found in the checked announcement listing; no per-device FPS targets, URP switch, classic-branch procedure or universal fix is established.
Source publication / observation date: 2026-09-19. See the note above for its meaning.
OPNeon Games — official 1.0 Update FAQ
Reopened September 19: 0.70 saves carry forward to 1.0; console-to-Steam cross-save is not offered; model/memory optimization is described. This is not a save-recovery, downgrade-compatibility or measured-FPS promise.
Source publication / observation date: 2026-09-14. See the note above for its meaning.
Steam Support — Verify Integrity of Game Files
Platform guidance reviewed September 19: Library → Properties → Installed Files → Verify integrity of game files for installation checks. Steam notes that some local configuration files can fail verification normally. This is not a TCG-specific save repair or an FPS guarantee.
Source publication / observation date: 2026-09-19. See the note above for its meaning.
Steam Support — Games do not run after Preparing to Launch
Platform troubleshooting reviewed September 19. Covers checking requirements, OS/drivers, installation files and non-essential software; distinguishes Windows and Linux. Our safe comparison checklist is editorial guidance, not independently playtested game fixes.
Source publication / observation date: 2026-09-19. See the note above for its meaning.
OPNeon Games — Build 1.02 addendum to the 1.0 announcement
Live-browser verified September 18: Ascension gift chance, TCG Arcade win counting and a possible tournament-progress fix. The parent announcement is dated September 14; the 1.02 addendum has no separate visible release timestamp. Console rollout and retroactive win recovery are not specified.
Source publication / observation date: 2026-09-18. See the note above for its meaning.
TCG Card Shop Simulator — official Steam achievements
The live page showed 50 achievements on September 18. The five 1.0 additions and their requirements were checked directly. Some cached views still showed the older total of 45. Our notebook covers only the five additions; no live account sync, global unlock percentages or platform-parity claim.
Source publication / observation date: 2026-09-18. See the note above for its meaning.
OPNeon Games — Build 1.01 bug-fix addendum
Observed in the “Build 1.01 - Bug Fixes” section of the 1.0 announcement. No separate publication timestamp is shown for this addendum; September 17 is our review date, not its asserted release date.
Source publication / observation date: 2026-09-17. See the note above for its meaning.
CardShopCoop — original mod author’s Nexus listing
Third-party author source, not an OPNeon announcement. Listing observed as version 1.2.0, updated September 13. We have not tested compatibility with the game’s 1.0 or 1.01 builds.
Source publication / observation date: 2026-09-17. See the note above for its meaning.
OPNeon Games — 1.0 update and launch FAQ
Workbench unlock, playable TCG, Ascension, tournament participation, save transfer and multiplayer status.
Source publication / observation date: 2026-09-14. See the note above for its meaning.
Ding Shen Sia — Tetramon Duel Master introduction, Xbox Wire
Developer-authored introduction. Published before 1.0; use the live Workbench rulebook if anything differs.
Source publication / observation date: 2026-08-17. See the note above for its meaning.
TCG Card Shop Simulator — official Steam listing
Game identity, management features, single-player classification and PC requirements.
Source publication / observation date: 2026-09-16. See the note above for its meaning.
Editorial screenshots
The three illustrations below originate from the developer-authored Xbox Wire article. They are credited to OPNeon Games / Xbox Wire and are not original artwork by this website. Optimized copies are served locally for performance. Artwork and trademark rights remain with their respective owners; no general reuse permission is claimed.
1.0 shop key artwork
OPNeon Games / Xbox Wire. Original image source.
Tetramon duel screenshot
OPNeon Games / Xbox Wire, pre-release screenshot. Original image source.
Pre-release card anatomy diagram
OPNeon Games / Xbox Wire, pre-release diagram; not current stat data. Original image source.
What the images do not establish
Card names and numbers visible in pre-release artwork are not treated as a verified current card database. The diagram is used to show how card information is arranged, not to publish current combat values.
For a correction or removal request, see the reporting information.