Sentinel Returns

Sentinel Returns is a video game developed by Hookstone, produced by No-Name Games and published by Sony (under the Psygnosis label) in 1998, for Microsoft Windows and PlayStation. It is the sequel to The Sentinel by Geoff Crammond and features 651 levels, a multiplayer mode and a soundtrack (titled "Earth/Air") composed by John Carpenter and arranged by Gary McKill.

Sentinel Returns
European cover art
Developer(s)Hookstone
Publisher(s)Psygnosis
Composer(s)John Carpenter
Platform(s)Windows, PlayStation
Release
  • EU: July 1998
  • NA: 28 September 1998[1]
Genre(s)Puzzle
Mode(s)Single-player, multiplayer

The PC version has native support limited to a software display mode and an accelerated Glide mode, because in 1998, 3DFX cards were the de facto standard for gaming 3D graphics. However, modern computers can run the game in accelerated mode with the wrappers nGlide,[2] dgVoodoo,[3] OpenGlide[4] or zeckensack's Glide wrapper,[5] which translate Glide calls respectively into Direct3D or OpenGL calls.

This game looks very different from its predecessor. While in The Sentinel the levels were bright and colorful, in Sentinel Returns they are dark and gloomy, with flashes of light being emitted when an object is created or absorbed, and the mouse pointer dynamically lighting the world. The game has a general "hallucinated" look: the skies are made out of contrasting streaks of color; the trees are white; the boulders pulsate as if breathing; the sentinels and sentries are hybrids of flesh and metal; the sentinel stands are covered with skin and have four vertebral columns protruding from the corners; the "specimen" representing the living part of the synthoid resembles a hydatidiform mole, and it squirms and lets out a shriek when injected with a needle.

Game mechanics

Controlling Synthoids that are standing at a higher level is fundamental to the game, because only the objects which occupy a visible square can be interacted with (the player may absorb or create objects on a boulder if the sides can be seen). While doing so, the player must watch for the rotation of the Sentinel and be careful not to stand in an area which the Sentinel can see, or else it will start absorbing energy from the Synthoid, and when the energy is gone, the game is over.

Height is gained by placing a boulder on any visible square, and putting a Synthoid on the boulder. The player may then transfer consciousness to the new Synthoid, and absorb the old one. Stacks of boulders of any height may be created, if the player has enough energy. In order to absorb the Sentinel, the player must create a stack of boulders of sufficient height that the Synthoid on top can look down on the Sentinel's platform. A level is won by absorbing the Sentinel off its platform, creating a new Synthoid in the place of the Sentinel, transferring the consciousness to it and hyperspacing to a new level.

The number of levels that are skipped between two that are played depends on the amount of energy the player has accumulated when he jumps into hyperspace: absorbing less than 50% of the total energy present in a level will skip a level; absorbing between 50% and 69% will skip two; absorbing between 70% to 89% will skip three; absorbing between 90% and 100% will skip four.

Once the Sentinel is absorbed, the player may no longer absorb any energy from the landscape, although objects may be created as normal. This enables particularly troublesome levels to be skipped, by returning to a previous level, and finishing it with a different amount of energy than before.

In later levels, the Sentinel is assisted by a number of Sentries. They behave exactly like the Sentinel, but absorbing them is not necessary to complete the level. Unlike the Sentinel, the Sentries do not stand on a platform but on ordinary squares. The rotation of the Sentinel and the Sentries is slow and predictable. However, if there are many Sentries, there will be few safe locations anywhere on the landscape. If either the Sentinel or the Sentries see a square with more than 1 unit of energy (boulders or a synthoid), their rotation stops while they absorb the energy, one unit at a time. They must be able to see the square on which the energy is located for absorption to take place. Meanwhile, to keep the total energy of the landscape constant, a tree is created randomly on the landscape for each absorbed unit of energy. Thus, in general terms, absorption is simply the transplanting of energy to another location on the game field.

Attention must also be paid to nearby trees: if the Sentinel or Sentry can see a Synthoid or a boulder, but not the square it is standing on, and there are trees in the vicinity, it will transform one of them into a Meanie, which will start rotating. If the player is in a Synthoid when the Meanie turns to face them, and the Meanie can see the square the Synthoid is standing on, it will force the Synthoid to hyperspace and lose 3 units of energy. If the Meanie itself cannot see the player's square after a full rotation, it will turn back into a tree and the Sentinel or Sentry will resume rotation.

If the player chooses, they may perform a Hyperspace. This will use 3 units of energy to create a new Synthoid at a random location on the playfield. This location is at the same height or lower than the players current height. While performing a hyperspace can be advantageous if the immediate area is fully in the gaze of the Sentinel and/or Sentries, by way of possibly taking you far away from the danger zone, it is generally used as a last resort due to its unpredictable nature. This is because it may take you into a deep ravine from which you may not be able to build up enough boulders to escape from. Also, hyperspacing without the required 3 units of energy (either by player invocation or Meanie) will result in the player losing.

List of objects that can exist in the Sentinel world:

  • Tree (1 unit of energy)
  • Meanie (1 unit of energy)
  • Boulder (2 units of energy)
  • Synthoid (3 units of energy)
  • Sentry (3 units of energy)
  • Sentinel (4 units of energy)

Game mechanics differences from the predecessor
  • The action is faster and the movements (rotating the synthoid and transferring the consciousness from a synthoid to another) happen in real time. This allows the player to move much more quickly across the landscape and to complete a level in far less time. To counterbalance this, the Sentinels and Sentries (which have a FOV of 28 degrees) are able to absorb energy from the synthoid at a much greater rate.
  • By absorbing a sentry, a tree is created in a random square in the level.
  • There are "only" 651 single player levels, while there were 10,000 in the first episode. For this reason, it is only possible to skip up to 4 levels when one is finished.
  • A multiplayer mode is present. To start a multiplayer match on the PC version, the host needs to set up the random creation of a level, choose a DirectPlay service provider, type a host name and a player name, and finally select "Host a Session". Every guest needs to select the same service provider and select "Join a Session". The goal of multiplayer mode is to race each other to the Sentinel; every player can teleport each other's synthoid to lower levels. The supported DirectPlay service providers are IPX, TCP/IP, modem and serial.
  • The game has two endings. To see the first one, the player must beat the 651st level. To see the second one, the player must beat every level, or "achieve 100% orchid", as this is expressed in the game.

Graphical differences between PC and PlayStation version
PlayStation version
PC version

Although their gameplay is almost identical, the two versions have several differences in their graphical look.

  • The level selection and level loading screens are fully polygonal in the PC version, while they are made out of 2D elements in the PS1 version.
  • The 3D models have more polygons in the PC version than in the PS1 version.
  • The PC version has colored lights (although only with the hardware accelerated rendering), the PS1 version does not.
  • The levels have different architectures in the two versions.
  • The checkerboard patterns are more evident in the PS1 version, which has also rougher-looking slopes than the PC version.
  • The skies have orbiting planets in the PS1 version, they do not in the PC version.
  • When an object is created in the PC version, it appears abruptly. In the PS1 version, a seed (when a tree is created) or 2/3 "energy clusters" (when a boulder or a synthoid is created) fly to the selected square, while rotating polygons assemble into the object.
  • When an object is absorbed in the PC version, it disappears abruptly and generates a number of "energy rings" which quickly disappear. In the PS1 version, it disassembles into rotating polygons, while a seed (when a tree is absorbed) or 2/3 "energy clusters" (when a boulder, a synthoid or a sentry is absorbed) fly to the player's POV.
  • The explosion of the sentinel is seen from the player's point of view in the PC version and as a non-interactive scene in the PS1 version.
  • After a level has been beaten in the PC version, a vortex made of a spiral and a number of triangles appears above the sentinel stand; in the PS1 version it does not, but is mentioned anyway in the manual.
  • In the level-ending hyperspace scene, in the PC version the POV looks up into the vortex, while it looks down toward the synthoid in the PS1 version.

Reception

The PC version received favorable reviews, while the PlayStation version received mixed reviews, according to the review aggregation website GameRankings.[6][7] Next Generation said of the latter version in an early review, "Those who have fond memories of the original or who crave a new PlayStation experience should rent before buying. It's definitely an acquired taste."[19] Official U.S. PlayStation Magazine gave the same console version a negative review, about two months before it was released Stateside.[20]

Notes
  1. GamePro gave the PC version two 2.5/5 scores for graphics and control, 3.5/5 for sound, and 2/5 for overall fun factor.
  2. GamePro gave the PlayStation version 0.5/5 for graphics, 4/5 for sound, 2/5 for control, and 1/5 for overall fun factor.

References
  1. GameSpot staff (28 September 1998). "New Releases [date mislabeled as "April 28, 2000"]". GameSpot. CBS Interactive. Archived from the original on 5 June 2000. Retrieved 21 November 2020.
  2. "n-Glide". Zeus Software.
  3. "dgVoodoo". Dege's stuffs.
  4. "OpenGLide". SourceForge.
  5. "Home Page". zeckensack's Glide wraper.
  6. "Sentinel Returns for PC". GameRankings. CBS Interactive. Archived from the original on 2 June 2019. Retrieved 21 November 2020.
  7. "Sentinel Returns for PlayStation". GameRankings. CBS Interactive. Archived from the original on 27 May 2019. Retrieved 21 November 2020.
  8. House, Michael L. "Sentinel Returns (PC) - Review". AllGame. All Media Network. Archived from the original on 16 November 2014. Retrieved 21 November 2020.
  9. Wigmore, Glenn. "Sentinel Returns (PS) - Review". AllGame. All Media Network. Archived from the original on 15 November 2014. Retrieved 21 November 2020.
  10. Hunter, Scott (12 November 1998). "Sentinel Returns". Computer Games Strategy Plus. Strategy Plus, Inc. Archived from the original on 29 May 2003. Retrieved 21 November 2020.
  11. Clarkson, Mark (February 1999). "Sentinel Returns" (PDF). Computer Gaming World. No. 175. Ziff Davis. p. 244. Retrieved 21 November 2020.
  12. Mathers, Martin (August 1998). "Sentinel Returns (PC)". Computer and Video Games. No. 201. EMAP. pp. 64–65. Retrieved 21 November 2020.
  13. Edge staff (August 1998). "Sentinel Returns". Edge. No. 61. Future Publishing. p. 88. Retrieved 21 November 2020.
  14. EGM staff (September 1998). "Sentinel Returns". Electronic Gaming Monthly. No. 110. Ziff Davis.
  15. Morris, Daniel (1998). "Sentinel Returns Review for PC on GamePro.com". GamePro. IDG Entertainment. Archived from the original on 23 June 2004. Retrieved 21 November 2020.
  16. Boba Fatt (October 1998). "Sentinel Returns (PS)". GamePro. No. 121. IDG Entertainment. p. 176. Retrieved 21 November 2020.
  17. Smith, Josh (30 October 1998). "Sentinel Returns Review (PC) [date mislabeled as "May 5, 2000"]". GameSpot. CBS Interactive. Retrieved 21 November 2020.
  18. Smith, Josh (9 November 1998). "Sentinel Returns Review (PS) [date mislabeled as "May 2, 2000"]". GameSpot. CBS Interactive. Retrieved 21 November 2020.
  19. "Sentinel Returns (PS)". Next Generation. No. 44. Imagine Media. August 1998. p. 98. Retrieved 21 November 2020.
  20. "Sentinel Returns". Official U.S. PlayStation Magazine. Vol. 1 no. 11. Ziff Davis. August 1998.
  21. Poole, Stephen (January 1999). "Sentinel Returns". PC Gamer. Vol. 6 no. 1. Imagine Media. Archived from the original on 9 December 1999. Retrieved 21 November 2020.
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