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Planetfall: Legacy & Science
Planetfall is a science fiction-themed interactive fiction video game written by American videogame developer Steve Meretzky, and published in 1983 as the eighth game from Infocom. The original release was for Apple II, Atari 8-bit computers, TRS-80, and IBM PC compatibles (both as a self-booting disk and for MS-DOS). Atari ST and Commodore 64 versions…
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Planetfall topic overview
The analysis highlights Legacy and Science as prominent areas in the source structure around Planetfall.
Related topics
44
Source areas
5
Connected nodes
53
Extracted relationships
61
Concept neighborhoods
20
Bridge connections
53
What this topic covers Research coverage
Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.
Overview · 22 topics
Reception · 11 topics
Legacy · 4 topics
Plot · 4 topics
Release · 3 topics
Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.
Key facts & relationships
High-confidence facts extracted from structured source data. Use them as anchors for further research.
Genre
Interactive fiction
Publisher
Infocom
Designer
Steve Meretzky
Developer
Infocom
Engine
Z-machine
Mode
Single-player
Explore all related topics Closing gaps
A structured outline of related entities, concepts and subtopics. Open any item to build a new map centered on it.
Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.
Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.
How Planetfall connects Entity context
Entity context groups extracted connections by relationship type. Counts show recurrence in the analyzed source; the examples are research signals, not claims about importance.
The extracted context around Planetfall shows recurring relationship patterns in the source. For example, Planetfall → Apple, Atari, Atari Computers, Bambi's, But, Charlotte's Web, Computer Gaming World, Creative Computing, Floyd, Floyd's, Game, GEnie, In, Infocom, InfoWorld's Essential Guide, It, Maybe, Meretzky, Raph Koster, Raskolnikov Another extracted example is Planetfall → Also, Enchanter, For, In February, Japanese, Latin, Look, NEC PC-9801, PC-9801, Puranettofōru, SystemSoft, Take, There, This, Zork. Use these groups to spot repeated connection types before inspecting the individual relationships.
Planetfall → Also, Enchanter, For, In February, Japanese, Latin, Look, NEC PC-9801, PC-9801, Puranettofōru, SystemSoft, Take, There, This, Zork
related to External links· 10
Planetfall → Apple II, Bugs List, Cabinet, Folder, Game, Infocom, Infocom-if, Interactive Fiction Database, Planetfall Folder, Playable
is a· 2
Planetfall → portmanteau of planet and landfall, science fiction-themed interactive fiction video game written by American videogame developer Steve Meretzky
Designer· 1
Planetfall → Steve Meretzky
Developer· 1
Planetfall → Infocom
Engine· 1
Planetfall → Z-machine
Genre· 1
Planetfall → Interactive fiction
Mode· 1
Planetfall → Single-player
Platforms· 1
Planetfall → Amiga, Amstrad CPC, Amstrad PCW, Apple II, Apricot PC, Atari 8-bit, Atari ST, Commodore 64, CP/M, Rainbow, Kaypro II, Mac, NEC APC, Osborne 1, MS-DOS, PC-9801, TI-99/4A, TRS-80.
Important terminology
Frequent words and multi-word phrases across the lead, headings, infobox and body. Useful for terminology coverage.
Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.
Relationships are represented as Subject → Predicate → Object triples. Confidence describes extraction strength, not the real-world importance of a relationship; lower-confidence rows may be contextual rather than explicit.
TTTA extracted 61 structured relationships around Planetfall. Examples in this analysis include Planetfall → Designer → Steve Meretzky and Planetfall → Developer → Infocom. The table shows each extracted connection, where it came from and its confidence.
Subject
Predicate
Object
Confidence
Src
Planetfall
Designer
Steve Meretzky
1.00
infobox
Planetfall
Developer
Infocom
1.00
infobox
Planetfall
Engine
Z-machine
1.00
infobox
Planetfall
Genre
Interactive fiction
1.00
infobox
Planetfall
Mode
Single-player
1.00
infobox
Planetfall
Platforms
Amiga, Amstrad CPC, Amstrad PCW, Apple II, Apricot PC, Atari 8-bit, Atari ST, Commodore 64, CP/M, Rainbow, Kaypro II, Mac, NEC APC, Osborne 1, MS-DOS, PC-9801, TI-99/4A, TRS-80.
1.00
infobox
Planetfall
Publisher
Infocom
1.00
infobox
Planetfall
Release
Release 20: July 8, 1983 Release 26: October 14, 1983 Release 29: January 18, 1984 Release 37: October 3, 1985 Solid Gold: May 31, 1988
1.00
infobox
Planetfall
is a
science fiction-themed interactive fiction video game written by American videogame developer Steve Meretzky
0.90
text
Planetfall
is a
portmanteau of planet and landfall
0.90
text
Planetfall
related to External links
Infocom-if
0.60
section
Planetfall
related to External links
Bugs List
0.60
section
No triples extracted yet.
Related concept clusters Concept neighborhoods
Concept neighborhoods group terms that sit near one another in the extracted graph. They are useful for discovering adjacent language and context, but proximity does not by itself imply a factual relationship.
The concept neighborhoods around Planetfall bring nearby vocabulary together. In this analysis, examples include Published, Written and Infocom. Use the clusters to find adjacent concepts and terminology that may deserve separate research.
infocom
Published
Steve
Interactive
Planetfall
Meretzky
Z-machine
Commodore
Cp
Ms-dos
One
Pc
St
interactive fiction
Fiction
Interactive
Planetfall
Infocom
Commodore
Cp
Ms-dos
Pc
Published
St
Steve
Trs-80
science fiction
Interactive
Planetfall
Infocom
Commodore
Cp
Ms-dos
Pc
Published
St
Steve
Trs-80
Written
steve meretzky
Steve
Z-machine
Commodore
Cp
Ms-dos
Pc
Published
St
Trs-80
Written
Infocom
8-bit
atari 8-bit computers
8-bit
Atari
Ms-dos
Pc
Trs-80
Commodore
Ii
Release
St
Apple
Cp
Pc-9801
apple ii
Ii
Ms-dos
Pc
Trs-80
8-bit
Release
Atari
Commodore
Cp
St
Pc-9801
Z-machine
atari st
8-bit
Commodore
Ms-dos
Pc
St
Trs-80
Ii
Release
Cp
Pc-9801
Z-machine
Steve
z-machine
Commodore
Cp
Ms-dos
Pc
St
Steve
Trs-80
Uses
8-bit
Ii
Pc-9801
Release
Connections between topic areas Semantic bridges
Semantic bridges connect parts of the graph that would otherwise be more separate. A bridge is a structural signal in this analysis, not a claim that the two topic areas are equivalent.
For Planetfall, one of the stronger structural bridges in this analysis connects Planetfall with Overview. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.
Number of nodes, edges, triples, density and central hubs. Use it to gauge the size and connectivity of the map.
Planetfall
Nodes54
Edges53
Triples61
Avg. degree1.96
Density0.037037
Components1
Source & methodology
TTTA analyzes the structure around Planetfall to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Legacy & Science, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.
