Game processing system, method of processing game, and storage medium storing program for processing game

1. A game processing system for processing a game having a first mode and a second mode, the system comprising one or more computer processors configured to execute computer readable instructions to:

provide, in the first mode, an interaction with a virtual character in accordance with first detection information obtained by an information processing device not mounted on a head of a player;

start a switch process for switching the game from the first mode to the second mode in response to selection of a switch start object displayed on the information processing device in the first mode;

in the switch process, start the second mode if a switch object is selected by a player of the game gazing at the switch object during a predetermined period of time since the switch object is displayed, and return to the first mode if the switch object is not selected during the predetermined period of time; and

provide, in the second mode after the switch process, an interaction with the virtual character in accordance with second detection information obtained by a head mounted display mounted on the head of the player.

2. The game processing system of claim 1 , wherein the interaction with the virtual character in the first mode includes a prompting interaction through which the virtual character prompts the player to switch the game to the second mode.

3. The game processing system of claim 1 , wherein the interaction with the virtual character in the first mode includes a setting interaction for determining a setting of the second mode.

4. The game processing system of claim 1 , wherein the switch process is started in response to the interaction with the virtual character in the first mode.

5. The game processing system of claim 1 , wherein said one or more computer processors is configured to execute computer readable instructions further to:

switch, either at a start of the switch process or after a start of the switch process, an image displayed on the information processing device as a non-stereoscopic image to a stereoscopic image;

display a switch process image including the switch object as the stereoscopic image;

complete the switch process upon selection of the switch object by the player gazing at the switch object; and

provide the interaction with the virtual character in the second mode upon completion of the switch process.

6. The game processing system of claim 1 , wherein the one or more computer processors is configured to display, in response to selection of the switch start object, a guidance for prompting the player to put on the head mounted display on the information processing device.

7. The game processing system of claim 1 , wherein the one or more computer processors is configured to cause the information processing device to display a login screen to start the first mode after the second mode is terminated.

8. The game processing system of claim 1 , wherein the head mounted display includes an attachment to be fitted on the head of the player and the information processing device mounted on the attachment.

9. The game processing system of claim 1 , wherein, in the second mode, head tracking information for determining at least one of a position and an orientation of the head of the player is calculated based on the second detection information, and the interaction with the virtual character is provided in accordance with the head tracking information.

10. The game processing system of claim 1 , wherein, in the second mode, the virtual character is displayed as a stereoscopic image, whereas in the first mode, the virtual character is displayed as a non-stereoscopic image.

11. The game processing system of claim 1 , wherein the game is started in the first mode.

12. The game processing system of claim 1 , wherein points of the player acquired in the first mode is carried over to the second mode.

13. The game processing system of claim 1 , wherein the first mode is a non-VR mode and the second mode is a VR mode.

14. The game processing system of claim 1 , wherein a common game content is used both in the first mode and the second mode.

15. The game processing system of claim 14 , wherein a game parameter associated with the common game content is changed in the first mode.

16. The game processing system of claim 15 , wherein the game parameter associated with the common game content is further changed in the second mode.

17. The game processing system of claim 16 , wherein the game parameter associated with the common game content is further changed in the switch process.

18. The game processing system of claim 17 , wherein the game parameter associated with the common game content is further changed in another switch process for switching from the second mode to the first mode.

19. A method of processing a game having a first mode and a second mode with one or more computer processors executing computer readable instructions, the method comprising:

providing, in the first mode, an interaction with a virtual character in accordance with first detection information obtained by an information processing device not mounted on a head of a player;

starting a switch process for switching the game from the first mode to the second mode in response to selection of a switch start object displayed on the information processing device in the first mode;

in the switch process, starting the second mode if a switch object is selected by a player of the game gazing at the switch object during a predetermined period of time since the switch object is displayed, and return to the first mode if the switch object is not selected during the predetermined period of time; and

providing, in the second mode after the switch process, an interaction with the virtual character in accordance with second detection information obtained by a head mounted display mounted on the head of the player.

20. A non-transitory computer-readable storage medium storing a game processing program to be executed by one or more computer processors for processing a game having a first mode and a second mode,

wherein the game processing program causes the one or more computer processors to:

provide, in the first mode, an interaction with a virtual character in accordance with first detection information obtained by an information processing device not mounted on a head of a player;

start a switch process for switching the game from the first mode to the second mode in response to selection of a switch start object displayed on the information processing device in the first mode;

in the switch process, start the second mode if a switch object is selected by a player of the game gazing at the switch object during a predetermined period of time since the switch object is displayed, and return to the first mode if the switch object is not selected during the predetermined period of time; and

provide, in the second mode after the switch process, an interaction with the virtual character in accordance with second detection information obtained by a head mounted display mounted on the head of the player.