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SDI

1987 video game
VideoGame video_game Q3943319
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SDI

Summary

SDI is a video game[1]. SDI ranks in the top 6% of video_game entities by monthly Wikipedia readership (261 views/month).[2]

Key Facts

  • SDI's instance of is recorded as video game[3].
  • SDI was published by Q200491[4].
  • SDI's genre is shoot 'em up[5].
  • SDI's developer is recorded as Q122741[6].
  • SDI's platform is recorded as ZX Spectrum[7].
  • SDI's platform is recorded as Amstrad CPC[8].
  • SDI's platform is recorded as Q209868[9].
  • SDI's platform is recorded as Commodore 64[10].
  • SDI's review score is recorded as 90%[11].
  • SDI's review score is recorded as 77%[12].
  • SDI's review score is recorded as 87%[13].
  • SDI's review score is recorded as 77%[14].
  • SDI's country of origin is recorded as Japan[15].
  • SDI was released on January 1, 1987[16].
  • SDI's P14470 is recorded as Games/Global_Defense[17].
  • SDI's P14470 is recorded as Games/SDI_Strategic_Defense_Initiative[18].

Body

Authorship and Creation

SDI was published by Q200491[4].

Publication

SDI was released on January 1, 1987[16]. SDI's genre is shoot 'em up[5].

Reception

Reviews include 90%[11], 77%[12], and 87%[13].

Why It Matters

SDI ranks in the top 6% of video_game entities by monthly Wikipedia readership (261 views/month).[2] SDI is known by 5 alternative names across languages and contexts.[19]

Related Entities

Japan

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] ↑ . wikidata.org.
  2. [4] ↑ . wikidata.org.
  3. [5] ↑ . wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . wikidata.org.
  9. [11] ↑ . wikidata.org.
  10. [12] ↑ . wikidata.org.
  11. [13] ↑ . wikidata.org.
  12. [14] ↑ . wikidata.org.
  13. [15] ↑ . wikidata.org.
  14. [16] ↑ . wikidata.org.
  15. [17] ↑ . wikidata.org.
  16. [18] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [19] ↑ . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). SDI. Retrieved October 4, 2026, from https://4ort.xyz/entity/sdi-q3943319
MLA “SDI.” 4ort.xyz Knowledge Graph, 4ort.xyz, 4 Oct. 2026, https://4ort.xyz/entity/sdi-q3943319.
BibTeX @misc{4ortxyz_sdi-q3943319_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{SDI}}, year = {2026}, url = {https://4ort.xyz/entity/sdi-q3943319}, note = {Accessed: 2026-10-04}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): SDI — https://4ort.xyz/entity/sdi-q3943319 (retrieved 2026-10-04)

Canonical URL: https://4ort.xyz/entity/sdi-q3943319 · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 10d ago · Mule hollandaise · 2026-09-25 view diff on Wikidata ↗
    Review score → 90%, 77%, 87% +1
    "/* wbeditentity-statements-single-property-add:1||4 */ [[Property:P444]], uploading review scores from gen4; thanks Catel69 for the parsing in the first place! ([[:toollabs:editgroups/b/OR/ac96494e159"
  2. 14w ago · Kirilloparma · 2026-06-28 view diff on Wikidata ↗
    P14470 → Games/Global_Defense, Games/SDI_Strategic_Defense_Initiative
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/38730|batch #38730]]: adding Giant Bomb Wiki game IDs matched via OpenRefine"
  3. 21w ago · J 1982 · 2026-05-11 view diff on Wikidata ↗
    Country of origin → —
    Genre → shoot 'em up
    Sega retro id → SDI:_Strategic_Defense_Initiative
    Platform → —
    + 14 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update:2||1|2 */ [[Property:P8351]]: 11390"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.